1157065041 has 12 divisors (see below), whose sum is σ = 1695754256. Its totient is φ = 701251320.

The previous prime is 1157065031. The next prime is 1157065043. The reversal of 1157065041 is 1405607511.

It is not a de Polignac number, because 1157065041 - 2²¹ = 1154967889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157065043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1593391 + ... + 1594116.

Almost surely, 2^1157065041 is an apocalyptic number.

1157065041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1157065041 is a deficient number, since it is larger than the sum of its proper divisors (538689215).

1157065041 is a wasteful number, since it uses less digits than its factorization.

1157065041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187532 (or 3187521 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 1157065041 is about 34015.6587618114. The cubic root of 1157065041 is about 1049.8306729219.

The spelling of 1157065041 in words is "one billion, one hundred fifty-seven million, sixty-five thousand, forty-one".