1042661231 has 8 divisors (see below), whose sum is σ = 1088437344. Its totient is φ = 996922080.

The previous prime is 1042661177. The next prime is 1042661251. The reversal of 1042661231 is 1321662401.

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

It is a cyclic number.

It is not a de Polignac number, because 1042661231 - 2¹⁴ = 1042644847 is a prime.

It is a super-2 number, since 2×1042661231² = 2174284885260870722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042661231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042661251) 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, 59321 + ... + 74861.

It is an arithmetic number, because the mean of its divisors is an integer number (136054668).

Almost surely, 2^1042661231 is an apocalyptic number.

1042661231 is a deficient number, since it is larger than the sum of its proper divisors (45776113).

1042661231 is a wasteful number, since it uses less digits than its factorization.

1042661231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18481.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1042661231 is about 32290.2652667952. The cubic root of 1042661231 is about 1014.0228508350.

The spelling of 1042661231 in words is "one billion, forty-two million, six hundred sixty-one thousand, two hundred thirty-one".