31053138 has 32 divisors (see below), whose sum is σ = 65288256. Its totient is φ = 9834048.

The previous prime is 31053137. The next prime is 31053173. The reversal of 31053138 is 83135013.

It is a super-3 number, since 3×31053138³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (31053131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7920 + ... + 11172.

It is an arithmetic number, because the mean of its divisors is an integer number (2040258).

Almost surely, 2^31053138 is an apocalyptic number.

31053138 is an abundant number, since it is smaller than the sum of its proper divisors (34235118).

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

31053138 is a wasteful number, since it uses less digits than its factorization.

31053138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 31053138 is about 5572.5342529230. The cubic root of 31053138 is about 314.3174538390.

The spelling of 31053138 in words is "thirty-one million, fifty-three thousand, one hundred thirty-eight".