1331401235 has 8 divisors (see below), whose sum is σ = 1597980336. Its totient is φ = 1064921760.

The previous prime is 1331401219. The next prime is 1331401259. The reversal of 1331401235 is 5321041331.

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

It is not a de Polignac number, because 1331401235 - 2⁴ = 1331401219 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 1331401235.

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, 8597 + ... + 52313.

It is an arithmetic number, because the mean of its divisors is an integer number (199747542).

Almost surely, 2^1331401235 is an apocalyptic number.

1331401235 is a deficient number, since it is larger than the sum of its proper divisors (266579101).

1331401235 is an equidigital number, since it uses as much as digits as its factorization.

1331401235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49813.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1331401235 is about 36488.3712297493. The cubic root of 1331401235 is about 1100.1105219528.

Adding to 1331401235 its reverse (5321041331), we get a palindrome (6652442566).

The spelling of 1331401235 in words is "one billion, three hundred thirty-one million, four hundred one thousand, two hundred thirty-five".