45087149 has 2 divisors, whose sum is σ = 45087150. Its totient is φ = 45087148.

The previous prime is 45087139. The next prime is 45087191. The reversal of 45087149 is 94178054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24900100 + 20187049 = 4990^2 + 4493^2 .

It is a cyclic number.

It is not a de Polignac number, because 45087149 - 2¹² = 45083053 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 (45087109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22543574 + 22543575.

It is an arithmetic number, because the mean of its divisors is an integer number (22543575).

Almost surely, 2^45087149 is an apocalyptic number.

It is an amenable number.

45087149 is a deficient number, since it is larger than the sum of its proper divisors (1).

45087149 is an equidigital number, since it uses as much as digits as its factorization.

45087149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 45087149 is about 6714.6964935133. The cubic root of 45087149 is about 355.9187969696.

The spelling of 45087149 in words is "forty-five million, eighty-seven thousand, one hundred forty-nine".