31375134 has 32 divisors (see below), whose sum is σ = 79683840. Its totient is φ = 8964216.

The previous prime is 31375121. The next prime is 31375147. The reversal of 31375134 is 43157313.

It is an interprime number because it is at equal distance from previous prime (31375121) and next prime (31375147).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31375098 and 31375107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41124 + ... + 41879.

It is an arithmetic number, because the mean of its divisors is an integer number (2490120).

Almost surely, 2^31375134 is an apocalyptic number.

31375134 is an abundant number, since it is smaller than the sum of its proper divisors (48308706).

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

31375134 is a wasteful number, since it uses less digits than its factorization.

31375134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83021 (or 83015 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 31375134 is about 5601.3510870146. The cubic root of 31375134 is about 315.4001264477.

The spelling of 31375134 in words is "thirty-one million, three hundred seventy-five thousand, one hundred thirty-four".