29197144631 has 2 divisors, whose sum is σ = 29197144632. Its totient is φ = 29197144630.

The previous prime is 29197144607. The next prime is 29197144657. The reversal of 29197144631 is 13644179192.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29197144631 - 2²² = 29192950327 is a prime.

It is a super-2 number, since 2×29197144631² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29197144601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14598572315 + 14598572316.

It is an arithmetic number, because the mean of its divisors is an integer number (14598572316).

Almost surely, 2^29197144631 is an apocalyptic number.

29197144631 is a deficient number, since it is larger than the sum of its proper divisors (1).

29197144631 is an equidigital number, since it uses as much as digits as its factorization.

29197144631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The spelling of 29197144631 in words is "twenty-nine billion, one hundred ninety-seven million, one hundred forty-four thousand, six hundred thirty-one".