2015957 has 4 divisors (see below), whose sum is σ = 2122080. Its totient is φ = 1909836.

The previous prime is 2015947. The next prime is 2015977. The reversal of 2015957 is 7595102.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7595102 = 2 ⋅3797551.

It is a cyclic number.

It is not a de Polignac number, because 2015957 - 2⁴ = 2015941 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 (2015947) 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, 53033 + ... + 53070.

It is an arithmetic number, because the mean of its divisors is an integer number (530520).

2^2015957 is an apocalyptic number.

It is an amenable number.

2015957 is a deficient number, since it is larger than the sum of its proper divisors (106123).

2015957 is a wasteful number, since it uses less digits than its factorization.

2015957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106122.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 2015957 is about 1419.8440055161. The cubic root of 2015957 is about 126.3262937871.

The spelling of 2015957 in words is "two million, fifteen thousand, nine hundred fifty-seven".