612802081 has 2 divisors, whose sum is σ = 612802082. Its totient is φ = 612802080.

The previous prime is 612802067. The next prime is 612802093. The reversal of 612802081 is 180208216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 526014225 + 86787856 = 22935^2 + 9316^2 .

It is a cyclic number.

It is not a de Polignac number, because 612802081 - 2⁹ = 612801569 is a prime.

It is a super-2 number, since 2×612802081² = 751052780955861122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (612802181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306401040 + 306401041.

It is an arithmetic number, because the mean of its divisors is an integer number (306401041).

Almost surely, 2^612802081 is an apocalyptic number.

It is an amenable number.

612802081 is a deficient number, since it is larger than the sum of its proper divisors (1).

612802081 is an equidigital number, since it uses as much as digits as its factorization.

612802081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 612802081 is about 24754.8395470461. The cubic root of 612802081 is about 849.3892179647.

The spelling of 612802081 in words is "six hundred twelve million, eight hundred two thousand, eighty-one".