147257557 has 2 divisors, whose sum is σ = 147257558. Its totient is φ = 147257556.

The previous prime is 147257503. The next prime is 147257611. The reversal of 147257557 is 755752741.

It is a balanced prime because it is at equal distance from previous prime (147257503) and next prime (147257611).

It can be written as a sum of positive squares in only one way, i.e., 96648561 + 50608996 = 9831^2 + 7114^2 .

It is a cyclic number.

It is not a de Polignac number, because 147257557 - 2¹¹ = 147255509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147257057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73628778 + 73628779.

It is an arithmetic number, because the mean of its divisors is an integer number (73628779).

Almost surely, 2^147257557 is an apocalyptic number.

It is an amenable number.

147257557 is a deficient number, since it is larger than the sum of its proper divisors (1).

147257557 is an equidigital number, since it uses as much as digits as its factorization.

147257557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 343000, while the sum is 43.

The square root of 147257557 is about 12134.9724762770. The cubic root of 147257557 is about 528.0712582220.

The spelling of 147257557 in words is "one hundred forty-seven million, two hundred fifty-seven thousand, five hundred fifty-seven".