150401257 has 4 divisors (see below), whose sum is σ = 150426180. Its totient is φ = 150376336.

The previous prime is 150401219. The next prime is 150401281. The reversal of 150401257 is 752104051.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 53890281 + 96510976 = 7341^2 + 9824^2 .

It is a cyclic number.

It is not a de Polignac number, because 150401257 - 2⁷ = 150401129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150401287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2919 + ... + 17587.

It is an arithmetic number, because the mean of its divisors is an integer number (37606545).

Almost surely, 2^150401257 is an apocalyptic number.

It is an amenable number.

150401257 is a deficient number, since it is larger than the sum of its proper divisors (24923).

150401257 is a wasteful number, since it uses less digits than its factorization.

150401257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24922.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 150401257 is about 12263.8190218219. The cubic root of 150401257 is about 531.8026396368.

The spelling of 150401257 in words is "one hundred fifty million, four hundred one thousand, two hundred fifty-seven".