1555133132 has 24 divisors (see below), whose sum is σ = 3245496576. Its totient is φ = 637507728.

The previous prime is 1555133131. The next prime is 1555133171. The reversal of 1555133132 is 2313315551.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1555133095 and 1555133104.

It is not an unprimeable number, because it can be changed into a prime (1555133131) 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, 1206758 + ... + 1208045.

It is an arithmetic number, because the mean of its divisors is an integer number (135229024).

Almost surely, 2^1555133132 is an apocalyptic number.

It is an amenable number.

1555133132 is an abundant number, since it is smaller than the sum of its proper divisors (1690363444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1555133132 is a wasteful number, since it uses less digits than its factorization.

1555133132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414837 (or 2414835 counting only the distinct ones).

The product of its digits is 6750, while the sum is 29.

The square root of 1555133132 is about 39435.1763277407. The cubic root of 1555133132 is about 1158.5706562620.

Adding to 1555133132 its reverse (2313315551), we get a palindrome (3868448683).

The spelling of 1555133132 in words is "one billion, five hundred fifty-five million, one hundred thirty-three thousand, one hundred thirty-two".