1157253401 has 2 divisors, whose sum is σ = 1157253402. Its totient is φ = 1157253400.

The previous prime is 1157253347. The next prime is 1157253407. The reversal of 1157253401 is 1043527511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 907455376 + 249798025 = 30124^2 + 15805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157253401 - 2²² = 1153059097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157253407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578626700 + 578626701.

It is an arithmetic number, because the mean of its divisors is an integer number (578626701).

Almost surely, 2^1157253401 is an apocalyptic number.

It is an amenable number.

1157253401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157253401 is an equidigital number, since it uses as much as digits as its factorization.

1157253401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1157253401 is about 34018.4273739983. The cubic root of 1157253401 is about 1049.8876375606.

The spelling of 1157253401 in words is "one billion, one hundred fifty-seven million, two hundred fifty-three thousand, four hundred one".