40871953 has 2 divisors, whose sum is σ = 40871954. Its totient is φ = 40871952.

The previous prime is 40871947. The next prime is 40871969. The reversal of 40871953 is 35917804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20729809 + 20142144 = 4553^2 + 4488^2 .

It is a cyclic number.

It is not a de Polignac number, because 40871953 - 2⁵ = 40871921 is a prime.

It is not a weakly prime, because it can be changed into another prime (40871903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20435976 + 20435977.

It is an arithmetic number, because the mean of its divisors is an integer number (20435977).

Almost surely, 2^40871953 is an apocalyptic number.

It is an amenable number.

40871953 is a deficient number, since it is larger than the sum of its proper divisors (1).

40871953 is an equidigital number, since it uses as much as digits as its factorization.

40871953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 40871953 is about 6393.1176275742. The cubic root of 40871953 is about 344.4623790600.

It can be divided in two parts, 408 and 71953, that added together give a square (72361 = 269²).

The spelling of 40871953 in words is "forty million, eight hundred seventy-one thousand, nine hundred fifty-three".