1152211557 has 32 divisors (see below), whose sum is σ = 1823028480. Its totient is φ = 633346560.

The previous prime is 1152211553. The next prime is 1152211559. The reversal of 1152211557 is 7551122511.

It is not a de Polignac number, because 1152211557 - 2² = 1152211553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152211553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167763 + ... + 174495.

It is an arithmetic number, because the mean of its divisors is an integer number (56969640).

Almost surely, 2^1152211557 is an apocalyptic number.

It is an amenable number.

1152211557 is a deficient number, since it is larger than the sum of its proper divisors (670816923).

1152211557 is a wasteful number, since it uses less digits than its factorization.

1152211557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7053.

The product of its digits is 3500, while the sum is 30.

The square root of 1152211557 is about 33944.2418828290. The cubic root of 1152211557 is about 1048.3607246108.

The spelling of 1152211557 in words is "one billion, one hundred fifty-two million, two hundred eleven thousand, five hundred fifty-seven".