101132440 has 32 divisors (see below), whose sum is σ = 239526000. Its totient is φ = 38323584.

The previous prime is 101132419. The next prime is 101132443. The reversal of 101132440 is 44231101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101132443) 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, 65775 + ... + 67294.

Almost surely, 2^101132440 is an apocalyptic number.

101132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101132440 is an abundant number, since it is smaller than the sum of its proper divisors (138393560).

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

101132440 is a wasteful number, since it uses less digits than its factorization.

101132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133099 (or 133095 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 101132440 is about 10056.4625987471. The cubic root of 101132440 is about 465.9044177593.

Adding to 101132440 its reverse (44231101), we get a palindrome (145363541).

The spelling of 101132440 in words is "one hundred one million, one hundred thirty-two thousand, four hundred forty".