2131354215 has 48 divisors (see below), whose sum is σ = 3841437600. Its totient is φ = 1133678592.

The previous prime is 2131354207. The next prime is 2131354231. The reversal of 2131354215 is 5124531312.

It is not a de Polignac number, because 2131354215 - 2³ = 2131354207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 494791 + ... + 499079.

It is an arithmetic number, because the mean of its divisors is an integer number (80029950).

Almost surely, 2^2131354215 is an apocalyptic number.

2131354215 is a deficient number, since it is larger than the sum of its proper divisors (1710083385).

2131354215 is an equidigital number, since it uses as much as digits as its factorization.

2131354215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718 (or 4706 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2131354215 is about 46166.5919794823. The cubic root of 2131354215 is about 1286.9209692778.

Adding to 2131354215 its reverse (5124531312), we get a palindrome (7255885527).

The spelling of 2131354215 in words is "two billion, one hundred thirty-one million, three hundred fifty-four thousand, two hundred fifteen".