45149861 has 2 divisors, whose sum is σ = 45149862. Its totient is φ = 45149860.

The previous prime is 45149791. The next prime is 45149873. The reversal of 45149861 is 16894154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45144961 + 4900 = 6719^2 + 70^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45149861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45142861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22574930 + 22574931.

It is an arithmetic number, because the mean of its divisors is an integer number (22574931).

Almost surely, 2^45149861 is an apocalyptic number.

It is an amenable number.

45149861 is a deficient number, since it is larger than the sum of its proper divisors (1).

45149861 is an equidigital number, since it uses as much as digits as its factorization.

45149861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 45149861 is about 6719.3646277010. The cubic root of 45149861 is about 356.0837370879.

The spelling of 45149861 in words is "forty-five million, one hundred forty-nine thousand, eight hundred sixty-one".