1525172 has 24 divisors (see below), whose sum is σ = 3084480. Its totient is φ = 652160.

The previous prime is 1525171. The next prime is 1525207. The reversal of 1525172 is 2715251.

It is a happy number.

It is a super-3 number, since 3×1525172³ = 10643334848555665344, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272 + ... + 1767.

It is an arithmetic number, because the mean of its divisors is an integer number (128520).

2^1525172 is an apocalyptic number.

It is an amenable number.

1525172 is an abundant number, since it is smaller than the sum of its proper divisors (1559308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1525172 is a wasteful number, since it uses less digits than its factorization.

1525172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071 (or 2069 counting only the distinct ones).

The product of its digits is 700, while the sum is 23.

The square root of 1525172 is about 1234.9785423237. The cubic root of 1525172 is about 115.1082031380.

The spelling of 1525172 in words is "one million, five hundred twenty-five thousand, one hundred seventy-two".