1155653131 has 8 divisors (see below), whose sum is σ = 1218387600. Its totient is φ = 1093109760.

The previous prime is 1155653129. The next prime is 1155653171. The reversal of 1155653131 is 1313565511.

It is a happy number.

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 1155653131 - 2¹ = 1155653129 is a prime.

It is a super-2 number, since 2×1155653131² = 2671068318380206322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155653093 and 1155653102.

It is not an unprimeable number, because it can be changed into a prime (1155653171) 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, 35266 + ... + 59623.

It is an arithmetic number, because the mean of its divisors is an integer number (152298450).

Almost surely, 2^1155653131 is an apocalyptic number.

1155653131 is a deficient number, since it is larger than the sum of its proper divisors (62734469).

1155653131 is an equidigital number, since it uses as much as digits as its factorization.

1155653131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95549.

The product of its digits is 6750, while the sum is 31.

The square root of 1155653131 is about 33994.8986025845. The cubic root of 1155653131 is about 1049.4034800692.

The spelling of 1155653131 in words is "one billion, one hundred fifty-five million, six hundred fifty-three thousand, one hundred thirty-one".