40143277 has 2 divisors, whose sum is σ = 40143278. Its totient is φ = 40143276.

The previous prime is 40143269. The next prime is 40143287. The reversal of 40143277 is 77234104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22410756 + 17732521 = 4734^2 + 4211^2 .

It is a cyclic number.

It is not a de Polignac number, because 40143277 - 2³ = 40143269 is a prime.

It is a super-2 number, since 2×40143277² = 3222965376597458, which contains 22 as substring.

It is equal to p_2441863 and since 40143277 and 2441863 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40143227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20071638 + 20071639.

It is an arithmetic number, because the mean of its divisors is an integer number (20071639).

Almost surely, 2^40143277 is an apocalyptic number.

It is an amenable number.

40143277 is a deficient number, since it is larger than the sum of its proper divisors (1).

40143277 is an equidigital number, since it uses as much as digits as its factorization.

40143277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 40143277 is about 6335.8722367169. The cubic root of 40143277 is about 342.4030364692.

The spelling of 40143277 in words is "forty million, one hundred forty-three thousand, two hundred seventy-seven".