2149536731 has 2 divisors, whose sum is σ = 2149536732. Its totient is φ = 2149536730.

The previous prime is 2149536703. The next prime is 2149536733. The reversal of 2149536731 is 1376359412.

2149536731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2149536731 is a prime.

It is a super-2 number, since 2×2149536731² = 9241016315836332722, which contains 22 as substring.

Together with 2149536733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2149536733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074768365 + 1074768366.

It is an arithmetic number, because the mean of its divisors is an integer number (1074768366).

Almost surely, 2^2149536731 is an apocalyptic number.

2149536731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149536731 is an equidigital number, since it uses as much as digits as its factorization.

2149536731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 2149536731 is about 46363.0966502454. The cubic root of 2149536731 is about 1290.5701726038.

The spelling of 2149536731 in words is "two billion, one hundred forty-nine million, five hundred thirty-six thousand, seven hundred thirty-one".