40947123 has 32 divisors (see below), whose sum is σ = 64691200. Its totient is φ = 22550400.

The previous prime is 40947119. The next prime is 40947133. The reversal of 40947123 is 32174904.

It is a happy number.

It is not a de Polignac number, because 40947123 - 2² = 40947119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40947133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117153 + ... + 117501.

It is an arithmetic number, because the mean of its divisors is an integer number (2021600).

Almost surely, 2^40947123 is an apocalyptic number.

40947123 is a deficient number, since it is larger than the sum of its proper divisors (23744077).

40947123 is a wasteful number, since it uses less digits than its factorization.

40947123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 40947123 is about 6398.9939052948. The cubic root of 40947123 is about 344.6734233696.

The spelling of 40947123 in words is "forty million, nine hundred forty-seven thousand, one hundred twenty-three".