2122605739 has 2 divisors, whose sum is σ = 2122605740. Its totient is φ = 2122605738.

The previous prime is 2122605713. The next prime is 2122605757. The reversal of 2122605739 is 9375062212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122605739 is a prime.

It is a super-2 number, since 2×2122605739² = 9010910246471472242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2122605698 and 2122605707.

It is not a weakly prime, because it can be changed into another prime (2122603739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061302869 + 1061302870.

It is an arithmetic number, because the mean of its divisors is an integer number (1061302870).

Almost surely, 2^2122605739 is an apocalyptic number.

2122605739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122605739 is an equidigital number, since it uses as much as digits as its factorization.

2122605739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 2122605739 is about 46071.7455605928. The cubic root of 2122605739 is about 1285.1577653047.

The spelling of 2122605739 in words is "two billion, one hundred twenty-two million, six hundred five thousand, seven hundred thirty-nine".