1331245355 has 16 divisors (see below), whose sum is σ = 1834444800. Its totient is φ = 917220960.

The previous prime is 1331245337. The next prime is 1331245373. The reversal of 1331245355 is 5535421331.

It is an interprime number because it is at equal distance from previous prime (1331245337) and next prime (1331245373).

It is not a de Polignac number, because 1331245355 - 2⁶ = 1331245291 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635915 + ... + 638004.

It is an arithmetic number, because the mean of its divisors is an integer number (114652800).

Almost surely, 2^1331245355 is an apocalyptic number.

1331245355 is a deficient number, since it is larger than the sum of its proper divisors (503199445).

1331245355 is a wasteful number, since it uses less digits than its factorization.

1331245355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273954.

The product of its digits is 27000, while the sum is 32.

The square root of 1331245355 is about 36486.2351442294. The cubic root of 1331245355 is about 1100.0675867563.

Adding to 1331245355 its reverse (5535421331), we get a palindrome (6866666686).

The spelling of 1331245355 in words is "one billion, three hundred thirty-one million, two hundred forty-five thousand, three hundred fifty-five".