148268137 has 4 divisors (see below), whose sum is σ = 148559940. Its totient is φ = 147976336.

The previous prime is 148268117. The next prime is 148268161. The reversal of 148268137 is 731862841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731862841 = 499 ⋅1466659.

It can be written as a sum of positive squares in 2 ways, for example, as 135047641 + 13220496 = 11621^2 + 3636^2 .

It is a cyclic number.

It is not a de Polignac number, because 148268137 - 2¹¹ = 148266089 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148268137.

It is not an unprimeable number, because it can be changed into a prime (148268117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145138 + ... + 146155.

It is an arithmetic number, because the mean of its divisors is an integer number (37139985).

Almost surely, 2^148268137 is an apocalyptic number.

It is an amenable number.

148268137 is a deficient number, since it is larger than the sum of its proper divisors (291803).

148268137 is an equidigital number, since it uses as much as digits as its factorization.

148268137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291802.

The product of its digits is 64512, while the sum is 40.

The square root of 148268137 is about 12176.5404364294. The cubic root of 148268137 is about 529.2764982623.

The spelling of 148268137 in words is "one hundred forty-eight million, two hundred sixty-eight thousand, one hundred thirty-seven".