1970213631 has 16 divisors (see below), whose sum is σ = 2700999168. Its totient is φ = 1276689600.

The previous prime is 1970213621. The next prime is 1970213639. The reversal of 1970213631 is 1363120791.

It is not a de Polignac number, because 1970213631 - 2⁷ = 1970213503 is a prime.

It is a super-2 number, since 2×1970213631² = 7763483503556408322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1970213592 and 1970213601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970213639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3780 + ... + 62886.

It is an arithmetic number, because the mean of its divisors is an integer number (168812448).

Almost surely, 2^1970213631 is an apocalyptic number.

1970213631 is a deficient number, since it is larger than the sum of its proper divisors (730785537).

1970213631 is a wasteful number, since it uses less digits than its factorization.

1970213631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59422.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 1970213631 is about 44387.0885618780. The cubic root of 1970213631 is about 1253.6349938229.

It can be divided in two parts, 19702 and 13631, that added together give a palindrome (33333).

The spelling of 1970213631 in words is "one billion, nine hundred seventy million, two hundred thirteen thousand, six hundred thirty-one".