132401540 has 24 divisors (see below), whose sum is σ = 285559512. Its totient is φ = 51528960.

The previous prime is 132401539. The next prime is 132401561. The reversal of 132401540 is 45104231.

It can be written as a sum of positive squares in 4 ways, for example, as 55383364 + 77018176 = 7442^2 + 8776^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88721 + ... + 90200.

It is an arithmetic number, because the mean of its divisors is an integer number (11898313).

Almost surely, 2^132401540 is an apocalyptic number.

132401540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132401540 is an abundant number, since it is smaller than the sum of its proper divisors (153157972).

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

132401540 is a wasteful number, since it uses less digits than its factorization.

132401540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178967 (or 178965 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 132401540 is about 11506.5868093019. The cubic root of 132401540 is about 509.6801018332.

Adding to 132401540 its reverse (45104231), we get a palindrome (177505771).

The spelling of 132401540 in words is "one hundred thirty-two million, four hundred one thousand, five hundred forty".