1553136797 has 8 divisors (see below), whose sum is σ = 1610434560. Its totient is φ = 1496288880.

The previous prime is 1553136773. The next prime is 1553136829. The reversal of 1553136797 is 7976313551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1553136797 - 2²⁰ = 1552088221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553136707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105422 + ... + 119247.

It is an arithmetic number, because the mean of its divisors is an integer number (201304320).

Almost surely, 2^1553136797 is an apocalyptic number.

It is an amenable number.

1553136797 is a deficient number, since it is larger than the sum of its proper divisors (57297763).

1553136797 is a wasteful number, since it uses less digits than its factorization.

1553136797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224923.

The product of its digits is 595350, while the sum is 47.

The square root of 1553136797 is about 39409.8565970494. The cubic root of 1553136797 is about 1158.0746889601.

The spelling of 1553136797 in words is "one billion, five hundred fifty-three million, one hundred thirty-six thousand, seven hundred ninety-seven".