1047477531 has 16 divisors (see below), whose sum is σ = 1444241664. Its totient is φ = 674909664.

The previous prime is 1047477503. The next prime is 1047477533. The reversal of 1047477531 is 1357747401.

It is not a de Polignac number, because 1047477531 - 2⁵ = 1047477499 is a prime.

It is a super-2 number, since 2×1047477531² = 2194418355899711922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1047477531.

It is not an unprimeable number, because it can be changed into a prime (1047477533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38511 + ... + 59816.

It is an arithmetic number, because the mean of its divisors is an integer number (90265104).

Almost surely, 2^1047477531 is an apocalyptic number.

1047477531 is a deficient number, since it is larger than the sum of its proper divisors (396764133).

1047477531 is an equidigital number, since it uses as much as digits as its factorization.

1047477531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98450.

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 1047477531 is about 32364.7575458244. The cubic root of 1047477531 is about 1015.5817904280.

The spelling of 1047477531 in words is "one billion, forty-seven million, four hundred seventy-seven thousand, five hundred thirty-one".