2137031400 has 96 divisors (see below), whose sum is σ = 7571211840. Its totient is φ = 488463360.

The previous prime is 2137031371. The next prime is 2137031401. The reversal of 2137031400 is 41307312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2137031401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250209 + ... + 258608.

It is an arithmetic number, because the mean of its divisors is an integer number (78866790).

Almost surely, 2^2137031400 is an apocalyptic number.

2137031400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2137031400 is an abundant number, since it is smaller than the sum of its proper divisors (5434180440).

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

2137031400 is a wasteful number, since it uses less digits than its factorization.

2137031400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508843 (or 508834 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 2137031400 is about 46228.0369472899. The cubic root of 2137031400 is about 1288.0625926013.

Adding to 2137031400 its reverse (41307312), we get a palindrome (2178338712).

The spelling of 2137031400 in words is "two billion, one hundred thirty-seven million, thirty-one thousand, four hundred".