26161519 has 2 divisors, whose sum is σ = 26161520. Its totient is φ = 26161518.

The previous prime is 26161483. The next prime is 26161547. The reversal of 26161519 is 91516162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26161519 - 2¹⁷ = 26030447 is a prime.

It is a super-2 number, since 2×26161519² = 1368850152774722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26162519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13080759 + 13080760.

It is an arithmetic number, because the mean of its divisors is an integer number (13080760).

Almost surely, 2^26161519 is an apocalyptic number.

26161519 is a deficient number, since it is larger than the sum of its proper divisors (1).

26161519 is an equidigital number, since it uses as much as digits as its factorization.

26161519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 31.

The square root of 26161519 is about 5114.8332328630. The cubic root of 26161519 is about 296.8618016515.

The spelling of 26161519 in words is "twenty-six million, one hundred sixty-one thousand, five hundred nineteen".