612161426 has 8 divisors (see below), whose sum is σ = 922252620. Its totient is φ = 304743888.

The previous prime is 612161423. The next prime is 612161461. The reversal of 612161426 is 624161216.

It can be written as a sum of positive squares in 2 ways, for example, as 583270801 + 28890625 = 24151^2 + 5375^2 .

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

It is a super-2 number, since 2×612161426² = 749483222964706952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612161423) 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, 667841 + ... + 668756.

Almost surely, 2^612161426 is an apocalyptic number.

612161426 is a deficient number, since it is larger than the sum of its proper divisors (310091194).

612161426 is a wasteful number, since it uses less digits than its factorization.

612161426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336828.

The product of its digits is 3456, while the sum is 29.

The square root of 612161426 is about 24741.8961682406. The cubic root of 612161426 is about 849.0931162762.

The spelling of 612161426 in words is "six hundred twelve million, one hundred sixty-one thousand, four hundred twenty-six".