1560611131 has 4 divisors (see below), whose sum is σ = 1562042664. Its totient is φ = 1559179600.

The previous prime is 1560611119. The next prime is 1560611137. The reversal of 1560611131 is 1311160651.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1560611131 - 2⁵ = 1560611099 is a prime.

It is a super-2 number, since 2×1560611131² = 4871014204402198322, 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 = 1560611096 and 1560611105.

It is not an unprimeable number, because it can be changed into a prime (1560611137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714130 + ... + 716311.

It is an arithmetic number, because the mean of its divisors is an integer number (390510666).

Almost surely, 2^1560611131 is an apocalyptic number.

1560611131 is a deficient number, since it is larger than the sum of its proper divisors (1431533).

1560611131 is a wasteful number, since it uses less digits than its factorization.

1560611131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431532.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 1560611131 is about 39504.5710139979. The cubic root of 1560611131 is about 1159.9294276824.

Adding to 1560611131 its reverse (1311160651), we get a palindrome (2871771782).

The spelling of 1560611131 in words is "one billion, five hundred sixty million, six hundred eleven thousand, one hundred thirty-one".