1553312101 has 16 divisors (see below), whose sum is σ = 1744763328. Its totient is φ = 1370588800.

The previous prime is 1553312093. The next prime is 1553312129. The reversal of 1553312101 is 1012133551.

It is a cyclic number.

It is not a de Polignac number, because 1553312101 - 2³ = 1553312093 is a prime.

It is a super-2 number, since 2×1553312101² = 4825556966226068402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553312161) 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, 80106 + ... + 97588.

It is an arithmetic number, because the mean of its divisors is an integer number (109047708).

Almost surely, 2^1553312101 is an apocalyptic number.

1553312101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1553312101 is a deficient number, since it is larger than the sum of its proper divisors (191451227).

1553312101 is a wasteful number, since it uses less digits than its factorization.

1553312101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17732.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1553312101 is about 39412.0806479435. The cubic root of 1553312101 is about 1158.1182583113.

Adding to 1553312101 its reverse (1012133551), we get a palindrome (2565445652).

The spelling of 1553312101 in words is "one billion, five hundred fifty-three million, three hundred twelve thousand, one hundred one".