40136255 has 4 divisors (see below), whose sum is σ = 48163512. Its totient is φ = 32109000.

The previous prime is 40136251. The next prime is 40136263. The reversal of 40136255 is 55263104.

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

It is not a de Polignac number, because 40136255 - 2² = 40136251 is a prime.

It is a super-2 number, since 2×40136255² = 3221837930850050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40136251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4013621 + ... + 4013630.

It is an arithmetic number, because the mean of its divisors is an integer number (12040878).

Almost surely, 2^40136255 is an apocalyptic number.

40136255 is a deficient number, since it is larger than the sum of its proper divisors (8027257).

40136255 is an equidigital number, since it uses as much as digits as its factorization.

40136255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8027256.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 40136255 is about 6335.3180662063. The cubic root of 40136255 is about 342.3830705329.

Adding to 40136255 its reverse (55263104), we get a palindrome (95399359).

The spelling of 40136255 in words is "forty million, one hundred thirty-six thousand, two hundred fifty-five".