107421 has 8 divisors (see below), whose sum is σ = 145824. Its totient is φ = 70320.

The previous prime is 107377. The next prime is 107441. The reversal of 107421 is 124701.

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

It is not a de Polignac number, because 107421 - 2⁶ = 107357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 107421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107441) 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, 111 + ... + 476.

It is an arithmetic number, because the mean of its divisors is an integer number (18228).

2¹⁰⁷⁴²¹ is an apocalyptic number.

It is an amenable number.

107421 is a deficient number, since it is larger than the sum of its proper divisors (38403).

107421 is an equidigital number, since it uses as much as digits as its factorization.

107421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 107421 is about 327.7514302028. The cubic root of 107421 is about 47.5367766893.

It can be divided in two parts, 107 and 421, that added together give a triangular number (528 = T₃₂).

The spelling of 107421 in words is "one hundred seven thousand, four hundred twenty-one", and thus it is an iban number.