1553132045 has 16 divisors (see below), whose sum is σ = 1894935600. Its totient is φ = 1221888000.

The previous prime is 1553132039. The next prime is 1553132047. The reversal of 1553132045 is 5402313551.

It can be written as a sum of positive squares in 8 ways, for example, as 52809289 + 1500322756 = 7267^2 + 38734^2 .

It is not a de Polignac number, because 1553132045 - 2¹² = 1553127949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1553131999 and 1553132017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553132047) 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, 64925 + ... + 85565.

It is an arithmetic number, because the mean of its divisors is an integer number (118433475).

Almost surely, 2^1553132045 is an apocalyptic number.

It is an amenable number.

1553132045 is a deficient number, since it is larger than the sum of its proper divisors (341803555).

1553132045 is a wasteful number, since it uses less digits than its factorization.

1553132045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20896.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1553132045 is about 39409.7963075172. The cubic root of 1553132045 is about 1158.0735078715.

Adding to 1553132045 its reverse (5402313551), we get a palindrome (6955445596).

The spelling of 1553132045 in words is "one billion, five hundred fifty-three million, one hundred thirty-two thousand, forty-five".