152777497 has 2 divisors, whose sum is σ = 152777498. Its totient is φ = 152777496.

The previous prime is 152777479. The next prime is 152777501. The reversal of 152777497 is 794777251.

Together with previous prime (152777479) 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., 84566416 + 68211081 = 9196^2 + 8259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152777497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152777497.

It is not a weakly prime, because it can be changed into another prime (152777407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76388748 + 76388749.

It is an arithmetic number, because the mean of its divisors is an integer number (76388749).

Almost surely, 2^152777497 is an apocalyptic number.

It is an amenable number.

152777497 is a deficient number, since it is larger than the sum of its proper divisors (1).

152777497 is an equidigital number, since it uses as much as digits as its factorization.

152777497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864360, while the sum is 49.

The square root of 152777497 is about 12360.3194538005. The cubic root of 152777497 is about 534.5887275066.

The spelling of 152777497 in words is "one hundred fifty-two million, seven hundred seventy-seven thousand, four hundred ninety-seven".