1551114497 has 2 divisors, whose sum is σ = 1551114498. Its totient is φ = 1551114496.

The previous prime is 1551114491. The next prime is 1551114529. The reversal of 1551114497 is 7944111551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1327582096 + 223532401 = 36436^2 + 14951^2 .

It is a cyclic number.

It is not a de Polignac number, because 1551114497 - 2⁸ = 1551114241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1551114497.

It is not a weakly prime, because it can be changed into another prime (1551114491) 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, 775557248 + 775557249.

It is an arithmetic number, because the mean of its divisors is an integer number (775557249).

Almost surely, 2^1551114497 is an apocalyptic number.

It is an amenable number.

1551114497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551114497 is an equidigital number, since it uses as much as digits as its factorization.

1551114497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 38.

The square root of 1551114497 is about 39384.1909527160. The cubic root of 1551114497 is about 1157.5718374278.

The spelling of 1551114497 in words is "one billion, five hundred fifty-one million, one hundred fourteen thousand, four hundred ninety-seven".