45149639 has 2 divisors, whose sum is σ = 45149640. Its totient is φ = 45149638.

The previous prime is 45149633. The next prime is 45149647. The reversal of 45149639 is 93694154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45149639 - 2¹⁶ = 45084103 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 45149596 and 45149605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45149633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22574819 + 22574820.

It is an arithmetic number, because the mean of its divisors is an integer number (22574820).

Almost surely, 2^45149639 is an apocalyptic number.

45149639 is a deficient number, since it is larger than the sum of its proper divisors (1).

45149639 is an equidigital number, since it uses as much as digits as its factorization.

45149639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 45149639 is about 6719.3481082617. The cubic root of 45149639 is about 356.0831534706.

The spelling of 45149639 in words is "forty-five million, one hundred forty-nine thousand, six hundred thirty-nine".