31066013 has 8 divisors (see below), whose sum is σ = 34611840. Its totient is φ = 27640480.

The previous prime is 31065997. The next prime is 31066027.

31066013 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31066013 - 2⁴ = 31065997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31066033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29528 + ... + 30561.

It is an arithmetic number, because the mean of its divisors is an integer number (4326480).

Almost surely, 2^31066013 is an apocalyptic number.

It is an amenable number.

31066013 is a deficient number, since it is larger than the sum of its proper divisors (3545827).

31066013 is a wasteful number, since it uses less digits than its factorization.

31066013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60147.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 31066013 is about 5573.6893526640. The cubic root of 31066013 is about 314.3608877539.

It can be divided in two parts, 3106 and 6013, that added together give a palindrome (9119).

The spelling of 31066013 in words is "thirty-one million, sixty-six thousand, thirteen".