45621049 has 2 divisors, whose sum is σ = 45621050. Its totient is φ = 45621048.

The previous prime is 45621019. The next prime is 45621073. The reversal of 45621049 is 94012654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27405225 + 18215824 = 5235^2 + 4268^2 .

It is a cyclic number.

It is not a de Polignac number, because 45621049 - 2¹³ = 45612857 is a prime.

It is a super-2 number, since 2×45621049² = 4162560223720802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45621049.

It is not a weakly prime, because it can be changed into another prime (45621019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22810524 + 22810525.

It is an arithmetic number, because the mean of its divisors is an integer number (22810525).

Almost surely, 2^45621049 is an apocalyptic number.

It is an amenable number.

45621049 is a deficient number, since it is larger than the sum of its proper divisors (1).

45621049 is an equidigital number, since it uses as much as digits as its factorization.

45621049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 45621049 is about 6754.3355705798. The cubic root of 45621049 is about 357.3181600874.

The spelling of 45621049 in words is "forty-five million, six hundred twenty-one thousand, forty-nine".