45125117 has 2 divisors, whose sum is σ = 45125118. Its totient is φ = 45125116.

The previous prime is 45125111. The next prime is 45125141. The reversal of 45125117 is 71152154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41396356 + 3728761 = 6434^2 + 1931^2 .

It is a cyclic number.

It is not a de Polignac number, because 45125117 - 2⁶ = 45125053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45125111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22562558 + 22562559.

It is an arithmetic number, because the mean of its divisors is an integer number (22562559).

Almost surely, 2^45125117 is an apocalyptic number.

It is an amenable number.

45125117 is a deficient number, since it is larger than the sum of its proper divisors (1).

45125117 is an equidigital number, since it uses as much as digits as its factorization.

45125117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1400, while the sum is 26.

The square root of 45125117 is about 6717.5231298448. The cubic root of 45125117 is about 356.0186756394.

It can be divided in two parts, 45125 and 117, that multiplied together give a triangular number (5279625 = T₃₂₄₉).

The spelling of 45125117 in words is "forty-five million, one hundred twenty-five thousand, one hundred seventeen".