612386481 has 16 divisors (see below), whose sum is σ = 937856000. Its totient is φ = 348174288.

The previous prime is 612386459. The next prime is 612386513. The reversal of 612386481 is 184683216.

It is not a de Polignac number, because 612386481 - 2⁵ = 612386449 is a prime.

It is a super-2 number, since 2×612386481² = 750034404223126722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612386441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69091 + ... + 77448.

It is an arithmetic number, because the mean of its divisors is an integer number (58616000).

Almost surely, 2^612386481 is an apocalyptic number.

It is an amenable number.

612386481 is a deficient number, since it is larger than the sum of its proper divisors (325469519).

612386481 is a wasteful number, since it uses less digits than its factorization.

612386481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146748.

The product of its digits is 55296, while the sum is 39.

The square root of 612386481 is about 24746.4438051208. The cubic root of 612386481 is about 849.1971570462.

The spelling of 612386481 in words is "six hundred twelve million, three hundred eighty-six thousand, four hundred eighty-one".