612215130 has 32 divisors (see below), whose sum is σ = 1471690368. Its totient is φ = 162993600.

The previous prime is 612215111. The next prime is 612215147. The reversal of 612215130 is 31512216.

It is a junction number, because it is equal to n+sod(n) for n = 612215097 and 612215106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2760 + ... + 35100.

It is an arithmetic number, because the mean of its divisors is an integer number (45990324).

Almost surely, 2^612215130 is an apocalyptic number.

612215130 is an abundant number, since it is smaller than the sum of its proper divisors (859475238).

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

612215130 is a wasteful number, since it uses less digits than its factorization.

612215130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32982.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 612215130 is about 24742.9814290841. The cubic root of 612215130 is about 849.1179454370.

Adding to 612215130 its reverse (31512216), we get a palindrome (643727346).

The spelling of 612215130 in words is "six hundred twelve million, two hundred fifteen thousand, one hundred thirty".