1157740263 has 16 divisors (see below), whose sum is σ = 1725699840. Its totient is φ = 767088792.

The previous prime is 1157740231. The next prime is 1157740279. The reversal of 1157740263 is 3620477511.

It is a happy number.

It is not a de Polignac number, because 1157740263 - 2⁵ = 1157740231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157740163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127131 + ... + 135932.

It is an arithmetic number, because the mean of its divisors is an integer number (107856240).

Almost surely, 2^1157740263 is an apocalyptic number.

1157740263 is a deficient number, since it is larger than the sum of its proper divisors (567959577).

1157740263 is a wasteful number, since it uses less digits than its factorization.

1157740263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263235 (or 263229 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 1157740263 is about 34025.5824784823. The cubic root of 1157740263 is about 1050.0348478230.

The spelling of 1157740263 in words is "one billion, one hundred fifty-seven million, seven hundred forty thousand, two hundred sixty-three".