107421523 has 16 divisors (see below), whose sum is σ = 122798592. Its totient is φ = 93016000.

The previous prime is 107421499. The next prime is 107421527. The reversal of 107421523 is 325124701.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-107421523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107421527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70338 + ... + 71848.

It is an arithmetic number, because the mean of its divisors is an integer number (7674912).

Almost surely, 2^107421523 is an apocalyptic number.

107421523 is a deficient number, since it is larger than the sum of its proper divisors (15377069).

107421523 is a wasteful number, since it uses less digits than its factorization.

107421523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826.

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

The square root of 107421523 is about 10364.4354887278. The cubic root of 107421523 is about 475.3685383648.

The spelling of 107421523 in words is "one hundred seven million, four hundred twenty-one thousand, five hundred twenty-three".