40149147 has 16 divisors (see below), whose sum is σ = 57196160. Its totient is φ = 24976512.

The previous prime is 40149133. The next prime is 40149149. The reversal of 40149147 is 74194104.

It is not a de Polignac number, because 40149147 - 2¹⁰ = 40148123 is a prime.

It is a super-2 number, since 2×40149147² = 3223908009655218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40149149) 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 15 ways as a sum of consecutive naturals, for example, 1438 + ... + 9075.

It is an arithmetic number, because the mean of its divisors is an integer number (3574760).

Almost surely, 2^40149147 is an apocalyptic number.

40149147 is a deficient number, since it is larger than the sum of its proper divisors (17047013).

40149147 is a wasteful number, since it uses less digits than its factorization.

40149147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10602.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 40149147 is about 6336.3354551349. The cubic root of 40149147 is about 342.4197250906.

The spelling of 40149147 in words is "forty million, one hundred forty-nine thousand, one hundred forty-seven".