1042555321 has 8 divisors (see below), whose sum is σ = 1054398464. Its totient is φ = 1030734720.

The previous prime is 1042555291. The next prime is 1042555343. The reversal of 1042555321 is 1235552401.

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 1042555321 - 2²⁷ = 908337593 is a prime.

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 1042555321.

It is not an unprimeable number, because it can be changed into a prime (1042555621) 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, 98056 + ... + 108166.

It is an arithmetic number, because the mean of its divisors is an integer number (131799808).

Almost surely, 2^1042555321 is an apocalyptic number.

It is an amenable number.

1042555321 is a deficient number, since it is larger than the sum of its proper divisors (11843143).

1042555321 is a wasteful number, since it uses less digits than its factorization.

1042555321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11271.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1042555321 is about 32288.6252572016. The cubic root of 1042555321 is about 1013.9885160024.

The spelling of 1042555321 in words is "one billion, forty-two million, five hundred fifty-five thousand, three hundred twenty-one".