148518407 has 4 divisors (see below), whose sum is σ = 152532456. Its totient is φ = 144504360.

The previous prime is 148518401. The next prime is 148518413. The reversal of 148518407 is 704815841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704815841 = 23 ⋅30644167.

It is an interprime number because it is at equal distance from previous prime (148518401) and next prime (148518413).

It is a cyclic number.

It is not a de Polignac number, because 148518407 - 2⁸ = 148518151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148518401) 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, 2006969 + ... + 2007042.

It is an arithmetic number, because the mean of its divisors is an integer number (38133114).

Almost surely, 2^148518407 is an apocalyptic number.

148518407 is a deficient number, since it is larger than the sum of its proper divisors (4014049).

148518407 is an equidigital number, since it uses as much as digits as its factorization.

148518407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014048.

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 148518407 is about 12186.8128319097. The cubic root of 148518407 is about 529.5741292339.

The spelling of 148518407 in words is "one hundred forty-eight million, five hundred eighteen thousand, four hundred seven".