1148563131 has 8 divisors (see below), whose sum is σ = 1532599824. Its totient is φ = 765117600.

The previous prime is 1148563109. The next prime is 1148563151. The reversal of 1148563131 is 1313658411.

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

It is not a de Polignac number, because 1148563131 - 2⁵ = 1148563099 is a prime.

It is a super-2 number, since 2×1148563131² = 2638394531785046322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1148563092 and 1148563101.

It is not an unprimeable number, because it can be changed into a prime (1148563151) 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, 143236 + ... + 151041.

It is an arithmetic number, because the mean of its divisors is an integer number (191574978).

Almost surely, 2^1148563131 is an apocalyptic number.

1148563131 is a deficient number, since it is larger than the sum of its proper divisors (384036693).

1148563131 is a wasteful number, since it uses less digits than its factorization.

1148563131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295581.

The product of its digits is 8640, while the sum is 33.

The square root of 1148563131 is about 33890.4578163235. The cubic root of 1148563131 is about 1047.2530256216.

The spelling of 1148563131 in words is "one billion, one hundred forty-eight million, five hundred sixty-three thousand, one hundred thirty-one".