2140131402 has 32 divisors (see below), whose sum is σ = 4787784000. Its totient is φ = 708586704.

The previous prime is 2140131401. The next prime is 2140131449. The reversal of 2140131402 is 2041310412.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2140131401) 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, 124948 + ... + 141039.

It is an arithmetic number, because the mean of its divisors is an integer number (149618250).

Almost surely, 2^2140131402 is an apocalyptic number.

2140131402 is an abundant number, since it is smaller than the sum of its proper divisors (2647652598).

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

2140131402 is a wasteful number, since it uses less digits than its factorization.

2140131402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266147 (or 266141 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2140131402 is about 46261.5542540456. The cubic root of 2140131402 is about 1288.6851177556.

Adding to 2140131402 its reverse (2041310412), we get a palindrome (4181441814).

The spelling of 2140131402 in words is "two billion, one hundred forty million, one hundred thirty-one thousand, four hundred two".