1153745557 has 2 divisors, whose sum is σ = 1153745558. Its totient is φ = 1153745556.

The previous prime is 1153745497. The next prime is 1153745629. The reversal of 1153745557 is 7555473511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1144739556 + 9006001 = 33834^2 + 3001^2 .

It is an emirp because it is prime and its reverse (7555473511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1153745557 - 2²⁷ = 1019527829 is a prime.

It is a super-2 number, since 2×1153745557² = 2662257620594480498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153743557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576872778 + 576872779.

It is an arithmetic number, because the mean of its divisors is an integer number (576872779).

Almost surely, 2^1153745557 is an apocalyptic number.

It is an amenable number.

1153745557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153745557 is an equidigital number, since it uses as much as digits as its factorization.

1153745557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367500, while the sum is 43.

The square root of 1153745557 is about 33966.8302465803. The cubic root of 1153745557 is about 1048.8257642648.

The spelling of 1153745557 in words is "one billion, one hundred fifty-three million, seven hundred forty-five thousand, five hundred fifty-seven".