45542137 has 2 divisors, whose sum is σ = 45542138. Its totient is φ = 45542136.

The previous prime is 45542129. The next prime is 45542141. The reversal of 45542137 is 73124554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43612816 + 1929321 = 6604^2 + 1389^2 .

It is a cyclic number.

It is not a de Polignac number, because 45542137 - 2³ = 45542129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45542099 and 45542108.

It is not a weakly prime, because it can be changed into another prime (45542197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22771068 + 22771069.

It is an arithmetic number, because the mean of its divisors is an integer number (22771069).

Almost surely, 2^45542137 is an apocalyptic number.

It is an amenable number.

45542137 is a deficient number, since it is larger than the sum of its proper divisors (1).

45542137 is an equidigital number, since it uses as much as digits as its factorization.

45542137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 31.

The square root of 45542137 is about 6748.4914610600. The cubic root of 45542137 is about 357.1120201261.

The spelling of 45542137 in words is "forty-five million, five hundred forty-two thousand, one hundred thirty-seven".