1047761131 has 4 divisors (see below), whose sum is σ = 1048761000. Its totient is φ = 1046761264.

The previous prime is 1047761123. The next prime is 1047761149. The reversal of 1047761131 is 1311677401.

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 1047761131 - 2³ = 1047761123 is a prime.

It is a super-2 number, since 2×1047761131² = 2195606775268798322, 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 = 1047761093 and 1047761102.

It is not an unprimeable number, because it can be changed into a prime (1047761101) 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, 498361 + ... + 500458.

It is an arithmetic number, because the mean of its divisors is an integer number (262190250).

Almost surely, 2^1047761131 is an apocalyptic number.

1047761131 is a deficient number, since it is larger than the sum of its proper divisors (999869).

1047761131 is an equidigital number, since it uses as much as digits as its factorization.

1047761131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999868.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 1047761131 is about 32369.1385582008. The cubic root of 1047761131 is about 1015.6734369464.

The spelling of 1047761131 in words is "one billion, forty-seven million, seven hundred sixty-one thousand, one hundred thirty-one".