40122147 has 8 divisors (see below), whose sum is σ = 57611344. Its totient is φ = 24690528.

The previous prime is 40122107. The next prime is 40122151. The reversal of 40122147 is 74122104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40122147 - 2⁶ = 40122083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40122107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514348 + ... + 514425.

It is an arithmetic number, because the mean of its divisors is an integer number (7201418).

Almost surely, 2^40122147 is an apocalyptic number.

40122147 is a deficient number, since it is larger than the sum of its proper divisors (17489197).

40122147 is a wasteful number, since it uses less digits than its factorization.

40122147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028789.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 40122147 is about 6334.2045277998. The cubic root of 40122147 is about 342.3429496461.

The spelling of 40122147 in words is "forty million, one hundred twenty-two thousand, one hundred forty-seven".