31492125 has 128 divisors (see below), whose sum is σ = 70287360. Its totient is φ = 13608000.

The previous prime is 31492093. The next prime is 31492157. The reversal of 31492125 is 52129413.

It is an interprime number because it is at equal distance from previous prime (31492093) and next prime (31492157).

It is not a de Polignac number, because 31492125 - 2⁵ = 31492093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 732354 + ... + 732396.

It is an arithmetic number, because the mean of its divisors is an integer number (549120).

Almost surely, 2^31492125 is an apocalyptic number.

31492125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31492125 is an abundant number, since it is smaller than the sum of its proper divisors (38795235).

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

31492125 is a wasteful number, since it uses less digits than its factorization.

31492125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 89 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 31492125 is about 5611.7844755479. The cubic root of 31492125 is about 315.7916595243.

It can be divided in two parts, 3 and 1492125, that added together give a triangular number (1492128 = T₁₇₂₇).

The spelling of 31492125 in words is "thirty-one million, four hundred ninety-two thousand, one hundred twenty-five".