22051739 has 2 divisors, whose sum is σ = 22051740. Its totient is φ = 22051738.

The previous prime is 22051721. The next prime is 22051747. The reversal of 22051739 is 93715022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22051739 - 2⁸ = 22051483 is a prime.

It is not a weakly prime, because it can be changed into another prime (22051709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11025869 + 11025870.

It is an arithmetic number, because the mean of its divisors is an integer number (11025870).

Almost surely, 2^22051739 is an apocalyptic number.

22051739 is a deficient number, since it is larger than the sum of its proper divisors (1).

22051739 is an equidigital number, since it uses as much as digits as its factorization.

22051739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 22051739 is about 4695.9279168233. The cubic root of 22051739 is about 280.4234197504.

The spelling of 22051739 in words is "twenty-two million, fifty-one thousand, seven hundred thirty-nine".