40135155 has 16 divisors (see below), whose sum is σ = 64366080. Its totient is φ = 21355488.

The previous prime is 40135153. The next prime is 40135157. The reversal of 40135155 is 55153104.

It is an interprime number because it is at equal distance from previous prime (40135153) and next prime (40135157).

It is not a de Polignac number, because 40135155 - 2¹ = 40135153 is a prime.

It is a super-2 number, since 2×40135155² = 3221661333748050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40135153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4056 + ... + 9834.

It is an arithmetic number, because the mean of its divisors is an integer number (4022880).

Almost surely, 2^40135155 is an apocalyptic number.

40135155 is a deficient number, since it is larger than the sum of its proper divisors (24230925).

40135155 is a wasteful number, since it uses less digits than its factorization.

40135155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 40135155 is about 6335.2312507122. The cubic root of 40135155 is about 342.3799426475.

Adding to 40135155 its reverse (55153104), we get a palindrome (95288259).

The spelling of 40135155 in words is "forty million, one hundred thirty-five thousand, one hundred fifty-five".