40259137 has 4 divisors (see below), whose sum is σ = 41195440. Its totient is φ = 39322836.

The previous prime is 40259129. The next prime is 40259143. The reversal of 40259137 is 73195204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40259137 - 2³ = 40259129 is a prime.

It is a super-2 number, since 2×40259137² = 3241596223969538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40259099 and 40259108.

It is not an unprimeable number, because it can be changed into a prime (40259237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468087 + ... + 468172.

It is an arithmetic number, because the mean of its divisors is an integer number (10298860).

Almost surely, 2^40259137 is an apocalyptic number.

It is an amenable number.

40259137 is a deficient number, since it is larger than the sum of its proper divisors (936303).

40259137 is an equidigital number, since it uses as much as digits as its factorization.

40259137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936302.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 40259137 is about 6345.0088258410. The cubic root of 40259137 is about 342.7321302750.

The spelling of 40259137 in words is "forty million, two hundred fifty-nine thousand, one hundred thirty-seven".