1553113101 has 16 divisors (see below), whose sum is σ = 2095822080. Its totient is φ = 1022926080.

The previous prime is 1553113097. The next prime is 1553113127. The reversal of 1553113101 is 1013113551.

It is not a de Polignac number, because 1553113101 - 2² = 1553113097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553113141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635041 + ... + 637481.

It is an arithmetic number, because the mean of its divisors is an integer number (130988880).

Almost surely, 2^1553113101 is an apocalyptic number.

It is an amenable number.

1553113101 is a deficient number, since it is larger than the sum of its proper divisors (542708979).

1553113101 is a wasteful number, since it uses less digits than its factorization.

1553113101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4916.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 1553113101 is about 39409.5559604520. Note that the first 3 decimals coincide. The cubic root of 1553113101 is about 1158.0687994000.

Adding to 1553113101 its reverse (1013113551), we get a palindrome (2566226652).

The spelling of 1553113101 in words is "one billion, five hundred fifty-three million, one hundred thirteen thousand, one hundred one".