612451426 has 4 divisors (see below), whose sum is σ = 918677142. Its totient is φ = 306225712.

The previous prime is 612451421. The next prime is 612451459. The reversal of 612451426 is 624154216.

It is a happy number.

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., 353402401 + 259049025 = 18799^2 + 16095^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (612451421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153112855 + ... + 153112858.

Almost surely, 2^612451426 is an apocalyptic number.

612451426 is a deficient number, since it is larger than the sum of its proper divisors (306225716).

612451426 is a wasteful number, since it uses less digits than its factorization.

612451426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306225715.

The product of its digits is 11520, while the sum is 31.

The square root of 612451426 is about 24747.7559790782. The cubic root of 612451426 is about 849.2271757580.

The spelling of 612451426 in words is "six hundred twelve million, four hundred fifty-one thousand, four hundred twenty-six".