402653117 has 2 divisors, whose sum is σ = 402653118. Its totient is φ = 402653116.

The previous prime is 402653051. The next prime is 402653171. The reversal of 402653117 is 711356204.

Together with next prime (402653171) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329567716 + 73085401 = 18154^2 + 8549^2 .

It is a cyclic number.

It is not a de Polignac number, because 402653117 - 2¹⁸ = 402390973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402653117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402658117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201326558 + 201326559.

It is an arithmetic number, because the mean of its divisors is an integer number (201326559).

Almost surely, 2^402653117 is an apocalyptic number.

It is an amenable number.

402653117 is a deficient number, since it is larger than the sum of its proper divisors (1).

402653117 is an equidigital number, since it uses as much as digits as its factorization.

402653117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 402653117 is about 20066.2183034073. The cubic root of 402653117 is about 738.4317390400.

The spelling of 402653117 in words is "four hundred two million, six hundred fifty-three thousand, one hundred seventeen".