150357257 has 4 divisors (see below), whose sum is σ = 155542020. Its totient is φ = 145172496.

The previous prime is 150357247. The next prime is 150357269. The reversal of 150357257 is 752753051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 752753051 = 13901 ⋅54151.

It can be written as a sum of positive squares in 2 ways, for example, as 129527161 + 20830096 = 11381^2 + 4564^2 .

It is a cyclic number.

It is not a de Polignac number, because 150357257 - 2¹⁰ = 150356233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150357247) 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, 2592338 + ... + 2592395.

It is an arithmetic number, because the mean of its divisors is an integer number (38885505).

Almost surely, 2^150357257 is an apocalyptic number.

It is an amenable number.

150357257 is a deficient number, since it is larger than the sum of its proper divisors (5184763).

150357257 is an equidigital number, since it uses as much as digits as its factorization.

150357257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184762.

The product of its (nonzero) digits is 36750, while the sum is 35.

The square root of 150357257 is about 12262.0249958969. The cubic root of 150357257 is about 531.7507748257.

The spelling of 150357257 in words is "one hundred fifty million, three hundred fifty-seven thousand, two hundred fifty-seven".