1157745477 has 16 divisors (see below), whose sum is σ = 1765228032. Its totient is φ = 661177200.

The previous prime is 1157745467. The next prime is 1157745493. The reversal of 1157745477 is 7745477511.

It is a happy number.

It is not a de Polignac number, because 1157745477 - 2⁷ = 1157745349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157745467) 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, 22102 + ... + 52952.

It is an arithmetic number, because the mean of its divisors is an integer number (110326752).

Almost surely, 2^1157745477 is an apocalyptic number.

It is an amenable number.

1157745477 is a deficient number, since it is larger than the sum of its proper divisors (607482555).

1157745477 is a wasteful number, since it uses less digits than its factorization.

1157745477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32648.

The product of its digits is 960400, while the sum is 48.

The square root of 1157745477 is about 34025.6590972166. The cubic root of 1157745477 is about 1050.0364241333.

The spelling of 1157745477 in words is "one billion, one hundred fifty-seven million, seven hundred forty-five thousand, four hundred seventy-seven".