19116137 has 2 divisors, whose sum is σ = 19116138. Its totient is φ = 19116136.

The previous prime is 19116121. The next prime is 19116157. The reversal of 19116137 is 73161191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18011536 + 1104601 = 4244^2 + 1051^2 .

It is a cyclic number.

It is not a de Polignac number, because 19116137 - 2⁴ = 19116121 is a prime.

It is not a weakly prime, because it can be changed into another prime (19116107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9558068 + 9558069.

It is an arithmetic number, because the mean of its divisors is an integer number (9558069).

Almost surely, 2^19116137 is an apocalyptic number.

It is an amenable number.

19116137 is a deficient number, since it is larger than the sum of its proper divisors (1).

19116137 is an equidigital number, since it uses as much as digits as its factorization.

19116137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134, while the sum is 29.

The square root of 19116137 is about 4372.2004757330. The cubic root of 19116137 is about 267.3827453615.

The spelling of 19116137 in words is "nineteen million, one hundred sixteen thousand, one hundred thirty-seven".