40124155 has 4 divisors (see below), whose sum is σ = 48148992. Its totient is φ = 32099320.

The previous prime is 40124129. The next prime is 40124191. The reversal of 40124155 is 55142104.

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

It is not a de Polignac number, because 40124155 - 2¹¹ = 40122107 is a prime.

It is a Duffinian 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, 4012411 + ... + 4012420.

It is an arithmetic number, because the mean of its divisors is an integer number (12037248).

Almost surely, 2^40124155 is an apocalyptic number.

40124155 is a deficient number, since it is larger than the sum of its proper divisors (8024837).

40124155 is an equidigital number, since it uses as much as digits as its factorization.

40124155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8024836.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 40124155 is about 6334.3630303291. The cubic root of 40124155 is about 342.3486606497.

Adding to 40124155 its reverse (55142104), we get a palindrome (95266259).

The spelling of 40124155 in words is "forty million, one hundred twenty-four thousand, one hundred fifty-five".