45729137 has 2 divisors, whose sum is σ = 45729138. Its totient is φ = 45729136.

The previous prime is 45729127. The next prime is 45729139. The reversal of 45729137 is 73192754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45212176 + 516961 = 6724^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 45729137 - 2¹⁶ = 45663601 is a prime.

Together with 45729139, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45729137.

It is not a weakly prime, because it can be changed into another prime (45729139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22864568 + 22864569.

It is an arithmetic number, because the mean of its divisors is an integer number (22864569).

Almost surely, 2^45729137 is an apocalyptic number.

It is an amenable number.

45729137 is a deficient number, since it is larger than the sum of its proper divisors (1).

45729137 is an equidigital number, since it uses as much as digits as its factorization.

45729137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 45729137 is about 6762.3322160332. The cubic root of 45729137 is about 357.6001303953.

The spelling of 45729137 in words is "forty-five million, seven hundred twenty-nine thousand, one hundred thirty-seven".