31034157 has 32 divisors (see below), whose sum is σ = 52998144. Its totient is φ = 15681600.

The previous prime is 31034149. The next prime is 31034161. The reversal of 31034157 is 75143013.

It is not a de Polignac number, because 31034157 - 2³ = 31034149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31034117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6732 + ... + 10362.

It is an arithmetic number, because the mean of its divisors is an integer number (1656192).

Almost surely, 2^31034157 is an apocalyptic number.

31034157 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

31034157 is a deficient number, since it is larger than the sum of its proper divisors (21963987).

31034157 is a wasteful number, since it uses less digits than its factorization.

31034157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 31034157 is about 5570.8309075038. The cubic root of 31034157 is about 314.2533993831.

It can be divided in two parts, 3103 and 4157, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 31034157 in words is "thirty-one million, thirty-four thousand, one hundred fifty-seven".