213015130 has 16 divisors (see below), whose sum is σ = 384026184. Its totient is φ = 85072960.

The previous prime is 213015097. The next prime is 213015133. The reversal of 213015130 is 31510312.

213015130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 153586449 + 59428681 = 12393^2 + 7709^2 .

It is not an unprimeable number, because it can be changed into a prime (213015133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9781 + ... + 22840.

Almost surely, 2^213015130 is an apocalyptic number.

213015130 is a deficient number, since it is larger than the sum of its proper divisors (171011054).

213015130 is a wasteful number, since it uses less digits than its factorization.

213015130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33281.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 213015130 is about 14595.0378553808. The cubic root of 213015130 is about 597.2234021426.

Adding to 213015130 its reverse (31510312), we get a palindrome (244525442).

The spelling of 213015130 in words is "two hundred thirteen million, fifteen thousand, one hundred thirty".