612562481 has 4 divisors (see below), whose sum is σ = 618287472. Its totient is φ = 606837492.

The previous prime is 612562471. The next prime is 612562537. The reversal of 612562481 is 184265216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 612562481 - 2²⁶ = 545453617 is a prime.

It is a super-2 number, since 2×612562481² = 750465586257750722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612562471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2862335 + ... + 2862548.

It is an arithmetic number, because the mean of its divisors is an integer number (154571868).

Almost surely, 2^612562481 is an apocalyptic number.

It is an amenable number.

612562481 is a deficient number, since it is larger than the sum of its proper divisors (5724991).

612562481 is a wasteful number, since it uses less digits than its factorization.

612562481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724990.

The product of its digits is 23040, while the sum is 35.

The square root of 612562481 is about 24749.9996161616. Note that the first 3 decimals coincide. The cubic root of 612562481 is about 849.2785023994.

The spelling of 612562481 in words is "six hundred twelve million, five hundred sixty-two thousand, four hundred eighty-one".