1046642531 has 16 divisors (see below), whose sum is σ = 1254147840. Its totient is φ = 862218720.

The previous prime is 1046642507. The next prime is 1046642539. The reversal of 1046642531 is 1352466401.

It is a de Polignac number, because none of the positive numbers 2^k-1046642531 is a prime.

It is a super-2 number, since 2×1046642531² = 2190921175396171922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1046642539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104060 + ... + 113673.

It is an arithmetic number, because the mean of its divisors is an integer number (78384240).

Almost surely, 2^1046642531 is an apocalyptic number.

1046642531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1046642531 is a deficient number, since it is larger than the sum of its proper divisors (207505309).

1046642531 is a wasteful number, since it uses less digits than its factorization.

1046642531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217786.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1046642531 is about 32351.8551400070. The cubic root of 1046642531 is about 1015.3118606201.

The spelling of 1046642531 in words is "one billion, forty-six million, six hundred forty-two thousand, five hundred thirty-one".