46137989 has 2 divisors, whose sum is σ = 46137990. Its totient is φ = 46137988.

The previous prime is 46137979. The next prime is 46138003. The reversal of 46137989 is 98973164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44328964 + 1809025 = 6658^2 + 1345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46137989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46137919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23068994 + 23068995.

It is an arithmetic number, because the mean of its divisors is an integer number (23068995).

Almost surely, 2^46137989 is an apocalyptic number.

It is an amenable number.

46137989 is a deficient number, since it is larger than the sum of its proper divisors (1).

46137989 is an equidigital number, since it uses as much as digits as its factorization.

46137989 is an odious number, because the sum of its binary digits is odd.

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

The square root of 46137989 is about 6792.4950496854. The cubic root of 46137989 is about 358.6627056763.

The spelling of 46137989 in words is "forty-six million, one hundred thirty-seven thousand, nine hundred eighty-nine".