31051214 has 16 divisors (see below), whose sum is σ = 50651568. Its totient is φ = 14216832.

The previous prime is 31051201. The next prime is 31051247. The reversal of 31051214 is 41215013.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31051192 and 31051201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11084 + ... + 13599.

It is an arithmetic number, because the mean of its divisors is an integer number (3165723).

Almost surely, 2^31051214 is an apocalyptic number.

31051214 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31051214 is a deficient number, since it is larger than the sum of its proper divisors (19600354).

31051214 is a wasteful number, since it uses less digits than its factorization.

31051214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24739.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 31051214 is about 5572.3616178421. The cubic root of 31051214 is about 314.3109621787.

Adding to 31051214 its reverse (41215013), we get a palindrome (72266227).

The spelling of 31051214 in words is "thirty-one million, fifty-one thousand, two hundred fourteen".