150440657 has 4 divisors (see below), whose sum is σ = 150480240. Its totient is φ = 150401076.

The previous prime is 150440623. The next prime is 150440669. The reversal of 150440657 is 756044051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 150440657 - 2¹⁰ = 150439633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150440057) 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, 13403 + ... + 21920.

It is an arithmetic number, because the mean of its divisors is an integer number (37620060).

Almost surely, 2^150440657 is an apocalyptic number.

It is an amenable number.

150440657 is a deficient number, since it is larger than the sum of its proper divisors (39583).

150440657 is an equidigital number, since it uses as much as digits as its factorization.

150440657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39582.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 150440657 is about 12265.4252678005. The cubic root of 150440657 is about 531.8490736339.

The spelling of 150440657 in words is "one hundred fifty million, four hundred forty thousand, six hundred fifty-seven".