40136155 has 8 divisors (see below), whose sum is σ = 48356784. Its totient is φ = 31980000.

The previous prime is 40136153. The next prime is 40136179. The reversal of 40136155 is 55163104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40136155 - 2¹ = 40136153 is a prime.

It is a super-2 number, since 2×40136155² = 3221821876368050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40136153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14736 + ... + 17245.

It is an arithmetic number, because the mean of its divisors is an integer number (6044598).

Almost surely, 2^40136155 is an apocalyptic number.

40136155 is a deficient number, since it is larger than the sum of its proper divisors (8220629).

40136155 is a wasteful number, since it uses less digits than its factorization.

40136155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32237.

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

The square root of 40136155 is about 6335.3101739378. The cubic root of 40136155 is about 342.3827861821.

Adding to 40136155 its reverse (55163104), we get a palindrome (95299259).

The spelling of 40136155 in words is "forty million, one hundred thirty-six thousand, one hundred fifty-five".