495174721 has 2 divisors, whose sum is σ = 495174722. Its totient is φ = 495174720.

The previous prime is 495174709. The next prime is 495174761. The reversal of 495174721 is 127471594.

It is an a-pointer prime, because the next prime (495174761) can be obtained adding 495174721 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 456249600 + 38925121 = 21360^2 + 6239^2 .

It is a cyclic number.

It is not a de Polignac number, because 495174721 - 2⁹ = 495174209 is a prime.

It is not a weakly prime, because it can be changed into another prime (495174761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247587360 + 247587361.

It is an arithmetic number, because the mean of its divisors is an integer number (247587361).

Almost surely, 2^495174721 is an apocalyptic number.

It is an amenable number.

495174721 is a deficient number, since it is larger than the sum of its proper divisors (1).

495174721 is an equidigital number, since it uses as much as digits as its factorization.

495174721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 40.

The square root of 495174721 is about 22252.5216773291. The cubic root of 495174721 is about 791.1390506851.

The spelling of 495174721 in words is "four hundred ninety-five million, one hundred seventy-four thousand, seven hundred twenty-one".