212260631 has 8 divisors (see below), whose sum is σ = 234347904. Its totient is φ = 190638520.

The previous prime is 212260619. The next prime is 212260651. The reversal of 212260631 is 136062212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212260631 is a prime.

It is a super-2 number, since 2×212260631² = 90109150945036322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212260597 and 212260606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212260651) 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, 115331 + ... + 117156.

It is an arithmetic number, because the mean of its divisors is an integer number (29293488).

Almost surely, 2^212260631 is an apocalyptic number.

212260631 is a deficient number, since it is larger than the sum of its proper divisors (22087273).

212260631 is a wasteful number, since it uses less digits than its factorization.

212260631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232581.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 212260631 is about 14569.1671347404. The cubic root of 212260631 is about 596.5174467764.

The spelling of 212260631 in words is "two hundred twelve million, two hundred sixty thousand, six hundred thirty-one".