1355131213 has 16 divisors (see below), whose sum is σ = 1414082304. Its totient is φ = 1297707840.

The previous prime is 1355131201. The next prime is 1355131231. The reversal of 1355131213 is 3121315531.

It is a cyclic number.

It is not a de Polignac number, because 1355131213 - 2⁹ = 1355130701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355135213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493023 + ... + 495763.

It is an arithmetic number, because the mean of its divisors is an integer number (88380144).

Almost surely, 2^1355131213 is an apocalyptic number.

It is an amenable number.

1355131213 is a deficient number, since it is larger than the sum of its proper divisors (58951091).

1355131213 is a wasteful number, since it uses less digits than its factorization.

1355131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012.

The product of its digits is 1350, while the sum is 25.

The square root of 1355131213 is about 36812.1068807532. The cubic root of 1355131213 is about 1106.6079422295.

Adding to 1355131213 its reverse (3121315531), we get a palindrome (4476446744).

The spelling of 1355131213 in words is "one billion, three hundred fifty-five million, one hundred thirty-one thousand, two hundred thirteen".