45139351 has 2 divisors, whose sum is σ = 45139352. Its totient is φ = 45139350.

The previous prime is 45139321. The next prime is 45139357. The reversal of 45139351 is 15393154.

It is a happy number.

45139351 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 not a de Polignac number, because 45139351 - 2¹¹ = 45137303 is a prime.

It is a super-2 number, since 2×45139351² = 4075122017402402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45139357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22569675 + 22569676.

It is an arithmetic number, because the mean of its divisors is an integer number (22569676).

Almost surely, 2^45139351 is an apocalyptic number.

45139351 is a deficient number, since it is larger than the sum of its proper divisors (1).

45139351 is an equidigital number, since it uses as much as digits as its factorization.

45139351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 31.

The square root of 45139351 is about 6718.5825141915. The cubic root of 45139351 is about 356.0561051792.

The spelling of 45139351 in words is "forty-five million, one hundred thirty-nine thousand, three hundred fifty-one".