2602112581 has 2 divisors, whose sum is σ = 2602112582. Its totient is φ = 2602112580.

The previous prime is 2602112561. The next prime is 2602112641. The reversal of 2602112581 is 1852112062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2016908100 + 585204481 = 44910^2 + 24191^2 .

It is a cyclic number.

It is not a de Polignac number, because 2602112581 - 2¹⁵ = 2602079813 is a prime.

It is a super-2 number, since 2×2602112581² = 13541979768396963122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2602112561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1301056290 + 1301056291.

It is an arithmetic number, because the mean of its divisors is an integer number (1301056291).

Almost surely, 2^2602112581 is an apocalyptic number.

It is an amenable number.

2602112581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2602112581 is an equidigital number, since it uses as much as digits as its factorization.

2602112581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 2602112581 is about 51010.9064906712. The cubic root of 2602112581 is about 1375.4411950141.

The spelling of 2602112581 in words is "two billion, six hundred two million, one hundred twelve thousand, five hundred eighty-one".