132421553 has 24 divisors (see below), whose sum is σ = 153931008. Its totient is φ = 113652000.

The previous prime is 132421543. The next prime is 132421559. The reversal of 132421553 is 355124231.

It is a happy number.

It is not a de Polignac number, because 132421553 - 2⁴ = 132421537 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (132421559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160883 + ... + 161703.

It is an arithmetic number, because the mean of its divisors is an integer number (6413792).

Almost surely, 2^132421553 is an apocalyptic number.

It is an amenable number.

132421553 is a deficient number, since it is larger than the sum of its proper divisors (21509455).

132421553 is a wasteful number, since it uses less digits than its factorization.

132421553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 906 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 132421553 is about 11507.4564087812. The cubic root of 132421553 is about 509.7057805727.

Adding to 132421553 its reverse (355124231), we get a palindrome (487545784).

The spelling of 132421553 in words is "one hundred thirty-two million, four hundred twenty-one thousand, five hundred fifty-three".