1161415156 has 24 divisors (see below), whose sum is σ = 2218335840. Its totient is φ = 527656800.

The previous prime is 1161415139. The next prime is 1161415169. The reversal of 1161415156 is 6515141611.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106150 + ... + 116578.

It is an arithmetic number, because the mean of its divisors is an integer number (92430660).

Almost surely, 2^1161415156 is an apocalyptic number.

It is an amenable number.

1161415156 is a deficient number, since it is larger than the sum of its proper divisors (1056920684).

1161415156 is a wasteful number, since it uses less digits than its factorization.

1161415156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12975 (or 12973 counting only the distinct ones).

The product of its digits is 3600, while the sum is 31.

The square root of 1161415156 is about 34079.5416048984. The cubic root of 1161415156 is about 1051.1446793904.

Adding to 1161415156 its reverse (6515141611), we get a palindrome (7676556767).

The spelling of 1161415156 in words is "one billion, one hundred sixty-one million, four hundred fifteen thousand, one hundred fifty-six".