51197119 has 2 divisors, whose sum is σ = 51197120. Its totient is φ = 51197118.

The previous prime is 51197087. The next prime is 51197123. The reversal of 51197119 is 91179115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51197119 - 2⁵ = 51197087 is a prime.

It is a super-2 number, since 2×51197119² = 5242289987800322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51197519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25598559 + 25598560.

It is an arithmetic number, because the mean of its divisors is an integer number (25598560).

Almost surely, 2^51197119 is an apocalyptic number.

51197119 is a deficient number, since it is larger than the sum of its proper divisors (1).

51197119 is an equidigital number, since it uses as much as digits as its factorization.

51197119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835, while the sum is 34.

The square root of 51197119 is about 7155.2162091722. The cubic root of 51197119 is about 371.3201417576.

The spelling of 51197119 in words is "fifty-one million, one hundred ninety-seven thousand, one hundred nineteen".