2131435542 has 32 divisors (see below), whose sum is σ = 4608518400. Its totient is φ = 654892128.

The previous prime is 2131435513. The next prime is 2131435543. The reversal of 2131435542 is 2455341312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131435543) 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, 248442 + ... + 256877.

It is an arithmetic number, because the mean of its divisors is an integer number (144016200).

Almost surely, 2^2131435542 is an apocalyptic number.

2131435542 is an abundant number, since it is smaller than the sum of its proper divisors (2477082858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131435542 is a wasteful number, since it uses less digits than its factorization.

2131435542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505380.

The product of its digits is 14400, while the sum is 30.

The square root of 2131435542 is about 46167.4727703391. The cubic root of 2131435542 is about 1286.9373376021.

Adding to 2131435542 its reverse (2455341312), we get a palindrome (4586776854).

The spelling of 2131435542 in words is "two billion, one hundred thirty-one million, four hundred thirty-five thousand, five hundred forty-two".