31074121 has 16 divisors (see below), whose sum is σ = 34997760. Its totient is φ = 27394560.

The previous prime is 31074119. The next prime is 31074149. The reversal of 31074121 is 12147013.

It is a cyclic number.

It is not a de Polignac number, because 31074121 - 2¹ = 31074119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31014121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32985 + ... + 33913.

It is an arithmetic number, because the mean of its divisors is an integer number (2187360).

Almost surely, 2^31074121 is an apocalyptic number.

31074121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31074121 is a deficient number, since it is larger than the sum of its proper divisors (3923639).

31074121 is a wasteful number, since it uses less digits than its factorization.

31074121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 31074121 is about 5574.4166510945. The cubic root of 31074121 is about 314.3882339984.

The spelling of 31074121 in words is "thirty-one million, seventy-four thousand, one hundred twenty-one".