31129114 has 4 divisors (see below), whose sum is σ = 46693674. Its totient is φ = 15564556.

The previous prime is 31129069. The next prime is 31129141. The reversal of 31129114 is 41192113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41192113 = 659 ⋅62507.

It can be written as a sum of positive squares in only one way, i.e., 29648025 + 1481089 = 5445^2 + 1217^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7782277 + ... + 7782280.

Almost surely, 2^31129114 is an apocalyptic number.

31129114 is a deficient number, since it is larger than the sum of its proper divisors (15564560).

31129114 is a wasteful number, since it uses less digits than its factorization.

31129114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15564559.

The product of its digits is 216, while the sum is 22.

The square root of 31129114 is about 5579.3470944188. The cubic root of 31129114 is about 314.5735861235.

The spelling of 31129114 in words is "thirty-one million, one hundred twenty-nine thousand, one hundred fourteen".