612194122 has 4 divisors (see below), whose sum is σ = 918291186. Its totient is φ = 306097060.

The previous prime is 612194113. The next prime is 612194159. The reversal of 612194122 is 221491216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 477378801 + 134815321 = 21849^2 + 11611^2 .

It is a super-2 number, since 2×612194122² = 749563286022701768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153048529 + ... + 153048532.

Almost surely, 2^612194122 is an apocalyptic number.

612194122 is a deficient number, since it is larger than the sum of its proper divisors (306097064).

612194122 is a wasteful number, since it uses less digits than its factorization.

612194122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306097063.

The product of its digits is 1728, while the sum is 28.

The square root of 612194122 is about 24742.5569010157. The cubic root of 612194122 is about 849.1082329067.

It can be divided in two parts, 61219 and 4122, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 612194122 in words is "six hundred twelve million, one hundred ninety-four thousand, one hundred twenty-two".