1157189033 has 16 divisors (see below), whose sum is σ = 1553709696. Its totient is φ = 832343040.

The previous prime is 1157189029. The next prime is 1157189051. The reversal of 1157189033 is 3309817511.

It is a cyclic number.

It is not a de Polignac number, because 1157189033 - 2² = 1157189029 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157189003) 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, 577016 + ... + 579017.

It is an arithmetic number, because the mean of its divisors is an integer number (97106856).

Almost surely, 2^1157189033 is an apocalyptic number.

1157189033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1157189033 is a deficient number, since it is larger than the sum of its proper divisors (396520663).

1157189033 is a wasteful number, since it uses less digits than its factorization.

1157189033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156064.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 1157189033 is about 34017.4812853627. The cubic root of 1157189033 is about 1049.8681718094.

The spelling of 1157189033 in words is "one billion, one hundred fifty-seven million, one hundred eighty-nine thousand, thirty-three".