612220152 has 16 divisors (see below), whose sum is σ = 1530550440. Its totient is φ = 204073376.

The previous prime is 612220127. The next prime is 612220153. The reversal of 612220152 is 251022216.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612220153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12754563 + ... + 12754610.

Almost surely, 2^612220152 is an apocalyptic number.

It is an amenable number.

612220152 is an abundant number, since it is smaller than the sum of its proper divisors (918330288).

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

612220152 is a wasteful number, since it uses less digits than its factorization.

612220152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25509182 (or 25509178 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 612220152 is about 24743.0829121999. The cubic root of 612220152 is about 849.1202672018.

Adding to 612220152 its reverse (251022216), we get a palindrome (863242368).

The spelling of 612220152 in words is "six hundred twelve million, two hundred twenty thousand, one hundred fifty-two".