40156135 has 4 divisors (see below), whose sum is σ = 48187368. Its totient is φ = 32124904.

The previous prime is 40156121. The next prime is 40156141. The reversal of 40156135 is 53165104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40156135 - 2⁹ = 40155623 is a prime.

It is a super-2 number, since 2×40156135² = 3225030356276450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4015609 + ... + 4015618.

It is an arithmetic number, because the mean of its divisors is an integer number (12046842).

Almost surely, 2^40156135 is an apocalyptic number.

40156135 is a deficient number, since it is larger than the sum of its proper divisors (8031233).

40156135 is an equidigital number, since it uses as much as digits as its factorization.

40156135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8031232.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 40156135 is about 6336.8868539686. The cubic root of 40156135 is about 342.4395901057.

The spelling of 40156135 in words is "forty million, one hundred fifty-six thousand, one hundred thirty-five".