40537155 has 16 divisors (see below), whose sum is σ = 67680000. Its totient is φ = 20679648.

The previous prime is 40537139. The next prime is 40537169. The reversal of 40537155 is 55173504.

It is not a de Polignac number, because 40537155 - 2⁴ = 40537139 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 58405 + ... + 59094.

It is an arithmetic number, because the mean of its divisors is an integer number (4230000).

Almost surely, 2^40537155 is an apocalyptic number.

40537155 is a deficient number, since it is larger than the sum of its proper divisors (27142845).

40537155 is a wasteful number, since it uses less digits than its factorization.

40537155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117530.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 40537155 is about 6366.8795339632. The cubic root of 40537155 is about 343.5192576005.

The spelling of 40537155 in words is "forty million, five hundred thirty-seven thousand, one hundred fifty-five".