1553320159 has 2 divisors, whose sum is σ = 1553320160. Its totient is φ = 1553320158.

The previous prime is 1553320151. The next prime is 1553320189. The reversal of 1553320159 is 9510233551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1553320159 - 2³ = 1553320151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1553320151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776660079 + 776660080.

It is an arithmetic number, because the mean of its divisors is an integer number (776660080).

Almost surely, 2^1553320159 is an apocalyptic number.

1553320159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553320159 is an equidigital number, since it uses as much as digits as its factorization.

1553320159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 1553320159 is about 39412.1828753496. The cubic root of 1553320159 is about 1158.1202609354.

The spelling of 1553320159 in words is "one billion, five hundred fifty-three million, three hundred twenty thousand, one hundred fifty-nine".