31460661 has 12 divisors (see below), whose sum is σ = 45614400. Its totient is φ = 20894760.

The previous prime is 31460657. The next prime is 31460677. The reversal of 31460661 is 16606413.

It is not a de Polignac number, because 31460661 - 2² = 31460657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31465661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4011 + ... + 8888.

It is an arithmetic number, because the mean of its divisors is an integer number (3801200).

Almost surely, 2^31460661 is an apocalyptic number.

It is an amenable number.

31460661 is a deficient number, since it is larger than the sum of its proper divisors (14153739).

31460661 is a wasteful number, since it uses less digits than its factorization.

31460661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 31460661 is about 5608.9803886268. The cubic root of 31460661 is about 315.6864546022.

The spelling of 31460661 in words is "thirty-one million, four hundred sixty thousand, six hundred sixty-one".