1555150097 has 2 divisors, whose sum is σ = 1555150098. Its totient is φ = 1555150096.

The previous prime is 1555150087. The next prime is 1555150099. The reversal of 1555150097 is 7900515551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1258759441 + 296390656 = 35479^2 + 17216^2 .

It is a cyclic number.

It is not a de Polignac number, because 1555150097 - 2⁶ = 1555150033 is a prime.

Together with 1555150099, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1555150097.

It is not a weakly prime, because it can be changed into another prime (1555150099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777575048 + 777575049.

It is an arithmetic number, because the mean of its divisors is an integer number (777575049).

Almost surely, 2^1555150097 is an apocalyptic number.

It is an amenable number.

1555150097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1555150097 is an equidigital number, since it uses as much as digits as its factorization.

1555150097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39375, while the sum is 38.

The square root of 1555150097 is about 39435.3914269911. The cubic root of 1555150097 is about 1158.5748692088.

The spelling of 1555150097 in words is "one billion, five hundred fifty-five million, one hundred fifty thousand, ninety-seven".