1331322292 has 24 divisors (see below), whose sum is σ = 2471829696. Its totient is φ = 625243008.

The previous prime is 1331322287. The next prime is 1331322313. The reversal of 1331322292 is 2922231331.

It is a super-2 number, since 2×1331322292² = 3544838090352266528, 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 1331322292.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14743 + ... + 53665.

It is an arithmetic number, because the mean of its divisors is an integer number (102992904).

Almost surely, 2^1331322292 is an apocalyptic number.

It is an amenable number.

1331322292 is a deficient number, since it is larger than the sum of its proper divisors (1140507404).

1331322292 is a wasteful number, since it uses less digits than its factorization.

1331322292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39447 (or 39445 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 1331322292 is about 36487.2894581113. The cubic root of 1331322292 is about 1100.0887785096.

It can be divided in two parts, 133132 and 2292, that added together give a square (135424 = 368²).

The spelling of 1331322292 in words is "one billion, three hundred thirty-one million, three hundred twenty-two thousand, two hundred ninety-two".