2151340402 has 16 divisors (see below), whose sum is σ = 3238804800. Its totient is φ = 1071746640.

The previous prime is 2151340393. The next prime is 2151340459. The reversal of 2151340402 is 2040431512.

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, 846049 + ... + 848587.

It is an arithmetic number, because the mean of its divisors is an integer number (202425300).

Almost surely, 2^2151340402 is an apocalyptic number.

2151340402 is a deficient number, since it is larger than the sum of its proper divisors (1087464398).

2151340402 is a wasteful number, since it uses less digits than its factorization.

2151340402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2151340402 is about 46382.5441518682. The cubic root of 2151340402 is about 1290.9310431098.

Adding to 2151340402 its reverse (2040431512), we get a palindrome (4191771914).

The spelling of 2151340402 in words is "two billion, one hundred fifty-one million, three hundred forty thousand, four hundred two".