612100730 has 8 divisors (see below), whose sum is σ = 1101781332. Its totient is φ = 244840288.

The previous prime is 612100721. The next prime is 612100747. The reversal of 612100730 is 37001216.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 573075721 + 39025009 = 23939^2 + 6247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30605027 + ... + 30605046.

Almost surely, 2^612100730 is an apocalyptic number.

612100730 is a deficient number, since it is larger than the sum of its proper divisors (489680602).

612100730 is a wasteful number, since it uses less digits than its factorization.

612100730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61210080.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 612100730 is about 24740.6695543997. The cubic root of 612100730 is about 849.0650527312.

Adding to 612100730 its reverse (37001216), we get a palindrome (649101946).

The spelling of 612100730 in words is "six hundred twelve million, one hundred thousand, seven hundred thirty".