213130140 has 48 divisors (see below), whose sum is σ = 597438240. Its totient is φ = 56770560.

The previous prime is 213130117. The next prime is 213130147. The reversal of 213130140 is 41031312.

213130140 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213130147) 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, 77916 + ... + 80604.

It is an arithmetic number, because the mean of its divisors is an integer number (12446630).

Almost surely, 2^213130140 is an apocalyptic number.

213130140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213130140 is an abundant number, since it is smaller than the sum of its proper divisors (384308100).

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

213130140 is a wasteful number, since it uses less digits than its factorization.

213130140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 213130140 is about 14598.9773614456. The cubic root of 213130140 is about 597.3308660358.

Adding to 213130140 its reverse (41031312), we get a palindrome (254161452).

The spelling of 213130140 in words is "two hundred thirteen million, one hundred thirty thousand, one hundred forty".