612101492 has 72 divisors (see below), whose sum is σ = 1198229760. Its totient is φ = 273107520.

The previous prime is 612101491. The next prime is 612101527. The reversal of 612101492 is 294101216.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612101491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1968017 + ... + 1968327.

It is an arithmetic number, because the mean of its divisors is an integer number (16642080).

Almost surely, 2^612101492 is an apocalyptic number.

It is an amenable number.

612101492 is a deficient number, since it is larger than the sum of its proper divisors (586128268).

612101492 is a wasteful number, since it uses less digits than its factorization.

612101492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 612101492 is about 24740.6849541398. The cubic root of 612101492 is about 849.0654050628.

The spelling of 612101492 in words is "six hundred twelve million, one hundred one thousand, four hundred ninety-two".