612148647 has 8 divisors (see below), whose sum is σ = 890398080. Its totient is φ = 370999160.

The previous prime is 612148627. The next prime is 612148709. The reversal of 612148647 is 746841216.

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

It is a cyclic number.

It is not a de Polignac number, because 612148647 - 2⁶ = 612148583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612148627) 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, 9274947 + ... + 9275012.

It is an arithmetic number, because the mean of its divisors is an integer number (111299760).

Almost surely, 2^612148647 is an apocalyptic number.

612148647 is a deficient number, since it is larger than the sum of its proper divisors (278249433).

612148647 is a wasteful number, since it uses less digits than its factorization.

612148647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18549973.

The product of its digits is 64512, while the sum is 39.

The square root of 612148647 is about 24741.6379207198. The cubic root of 612148647 is about 849.0872079020.

The spelling of 612148647 in words is "six hundred twelve million, one hundred forty-eight thousand, six hundred forty-seven".