421132507 has 8 divisors (see below), whose sum is σ = 442356480. Its totient is φ = 400151400.

The previous prime is 421132499. The next prime is 421132531. The reversal of 421132507 is 705231124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421132507 - 2³ = 421132499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421132307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57157 + ... + 64102.

It is an arithmetic number, because the mean of its divisors is an integer number (55294560).

Almost surely, 2^421132507 is an apocalyptic number.

421132507 is a deficient number, since it is larger than the sum of its proper divisors (21223973).

421132507 is a wasteful number, since it uses less digits than its factorization.

421132507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121433.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 421132507 is about 20521.5132726610. The cubic root of 421132507 is about 749.5597457670.

The spelling of 421132507 in words is "four hundred twenty-one million, one hundred thirty-two thousand, five hundred seven".