40355137 has 2 divisors, whose sum is σ = 40355138. Its totient is φ = 40355136.

The previous prime is 40355129. The next prime is 40355141. The reversal of 40355137 is 73155304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39425841 + 929296 = 6279^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 40355137 - 2³ = 40355129 is a prime.

It is not a weakly prime, because it can be changed into another prime (40355177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20177568 + 20177569.

It is an arithmetic number, because the mean of its divisors is an integer number (20177569).

Almost surely, 2^40355137 is an apocalyptic number.

It is an amenable number.

40355137 is a deficient number, since it is larger than the sum of its proper divisors (1).

40355137 is an equidigital number, since it uses as much as digits as its factorization.

40355137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 40355137 is about 6352.5693227229. The cubic root of 40355137 is about 343.0043348737.

The spelling of 40355137 in words is "forty million, three hundred fifty-five thousand, one hundred thirty-seven".