115421532 has 24 divisors (see below), whose sum is σ = 269492496. Its totient is φ = 38448768.

The previous prime is 115421473. The next prime is 115421539. The reversal of 115421532 is 235124511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115421539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30328 + ... + 33920.

It is an arithmetic number, because the mean of its divisors is an integer number (11228854).

Almost surely, 2^115421532 is an apocalyptic number.

115421532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115421532 is an abundant number, since it is smaller than the sum of its proper divisors (154070964).

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

115421532 is a wasteful number, since it uses less digits than its factorization.

115421532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6277 (or 6275 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 115421532 is about 10743.4413480970. The cubic root of 115421532 is about 486.8878586273.

The spelling of 115421532 in words is "one hundred fifteen million, four hundred twenty-one thousand, five hundred thirty-two".