148946257 has 4 divisors (see below), whose sum is σ = 149454900. Its totient is φ = 148437616.

The previous prime is 148946251. The next prime is 148946279. The reversal of 148946257 is 752649841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109495296 + 39450961 = 10464^2 + 6281^2 .

It is a cyclic number.

It is not a de Polignac number, because 148946257 - 2¹¹ = 148944209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148946251) 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, 253882 + ... + 254467.

It is an arithmetic number, because the mean of its divisors is an integer number (37363725).

Almost surely, 2^148946257 is an apocalyptic number.

It is an amenable number.

148946257 is a deficient number, since it is larger than the sum of its proper divisors (508643).

148946257 is an equidigital number, since it uses as much as digits as its factorization.

148946257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508642.

The product of its digits is 483840, while the sum is 46.

The square root of 148946257 is about 12204.3540181363. The cubic root of 148946257 is about 530.0821719039.

The spelling of 148946257 in words is "one hundred forty-eight million, nine hundred forty-six thousand, two hundred fifty-seven".