31129010 has 16 divisors (see below), whose sum is σ = 61126272. Its totient is φ = 11319600.

The previous prime is 31129009. The next prime is 31129013. The reversal of 31129010 is 1092113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31129010.

It is not an unprimeable number, because it can be changed into a prime (31129013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141386 + ... + 141605.

It is an arithmetic number, because the mean of its divisors is an integer number (3820392).

Almost surely, 2^31129010 is an apocalyptic number.

31129010 is a deficient number, since it is larger than the sum of its proper divisors (29997262).

31129010 is a wasteful number, since it uses less digits than its factorization.

31129010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283009.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 31129010 is about 5579.3377743241. The cubic root of 31129010 is about 314.5732358010.

The spelling of 31129010 in words is "thirty-one million, one hundred twenty-nine thousand, ten".