349152631 has 2 divisors, whose sum is σ = 349152632. Its totient is φ = 349152630.

The previous prime is 349152623. The next prime is 349152637. The reversal of 349152631 is 136251943.

It is a strong prime.

It is an emirp because it is prime and its reverse (136251943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349152631 - 2³ = 349152623 is a prime.

It is a super-2 number, since 2×349152631² = 243815119468444322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349152637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174576315 + 174576316.

It is an arithmetic number, because the mean of its divisors is an integer number (174576316).

Almost surely, 2^349152631 is an apocalyptic number.

349152631 is a deficient number, since it is larger than the sum of its proper divisors (1).

349152631 is an equidigital number, since it uses as much as digits as its factorization.

349152631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 349152631 is about 18685.6263207846. The cubic root of 349152631 is about 704.1606838530.

The spelling of 349152631 in words is "three hundred forty-nine million, one hundred fifty-two thousand, six hundred thirty-one".