1156345141 has 8 divisors (see below), whose sum is σ = 1322955200. Its totient is φ = 990089568.

The previous prime is 1156345109. The next prime is 1156345147. The reversal of 1156345141 is 1415436511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1156345141 - 2⁵ = 1156345109 is a prime.

It is a super-2 number, since 2×1156345141² = 2674268170228619762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156345147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81591 + ... + 94708.

It is an arithmetic number, because the mean of its divisors is an integer number (165369400).

Almost surely, 2^1156345141 is an apocalyptic number.

It is an amenable number.

1156345141 is a deficient number, since it is larger than the sum of its proper divisors (166610059).

1156345141 is an equidigital number, since it uses as much as digits as its factorization.

1156345141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177243.

The product of its digits is 7200, while the sum is 31.

The square root of 1156345141 is about 34005.0752241485. The cubic root of 1156345141 is about 1049.6129006934.

The spelling of 1156345141 in words is "one billion, one hundred fifty-six million, three hundred forty-five thousand, one hundred forty-one".