1525979 has 16 divisors (see below), whose sum is σ = 1928640. Its totient is φ = 1175040.

The previous prime is 1525969. The next prime is 1525987. The reversal of 1525979 is 9795251.

It is a cyclic number.

It is not a de Polignac number, because 1525979 - 2⁴ = 1525963 is a prime.

It is a super-2 number, since 2×1525979² = 4657223816882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1525969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3527 + ... + 3935.

It is an arithmetic number, because the mean of its divisors is an integer number (120540).

2^1525979 is an apocalyptic number.

1525979 is a deficient number, since it is larger than the sum of its proper divisors (402661).

1525979 is a wasteful number, since it uses less digits than its factorization.

1525979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its digits is 28350, while the sum is 38.

The square root of 1525979 is about 1235.3052254403. The cubic root of 1525979 is about 115.1285016008.

The spelling of 1525979 in words is "one million, five hundred twenty-five thousand, nine hundred seventy-nine".