40151187 has 8 divisors (see below), whose sum is σ = 59483280. Its totient is φ = 26767440.

The previous prime is 40151183. The next prime is 40151203. The reversal of 40151187 is 78115104.

It is not a de Polignac number, because 40151187 - 2² = 40151183 is a prime.

It is a super-2 number, since 2×40151187² = 3224235635017938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1487081 = 40151187 / (4 + 0 + 1 + 5 + 1 + 1 + 8 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 40151187.

It is not an unprimeable number, because it can be changed into a prime (40151183) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 743514 + ... + 743567.

It is an arithmetic number, because the mean of its divisors is an integer number (7435410).

Almost surely, 2^40151187 is an apocalyptic number.

40151187 is a deficient number, since it is larger than the sum of its proper divisors (19332093).

40151187 is a wasteful number, since it uses less digits than its factorization.

40151187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487090 (or 1487084 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 40151187 is about 6336.4964294159. The cubic root of 40151187 is about 342.4255245033.

The spelling of 40151187 in words is "forty million, one hundred fifty-one thousand, one hundred eighty-seven".