42099113 has 4 divisors (see below), whose sum is σ = 48113280. Its totient is φ = 36084948.

The previous prime is 42099091. The next prime is 42099143. The reversal of 42099113 is 31199024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42099113 - 2⁶ = 42099049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42099143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3007073 + ... + 3007086.

It is an arithmetic number, because the mean of its divisors is an integer number (12028320).

Almost surely, 2^42099113 is an apocalyptic number.

It is an amenable number.

42099113 is a deficient number, since it is larger than the sum of its proper divisors (6014167).

42099113 is an equidigital number, since it uses as much as digits as its factorization.

42099113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014166.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 42099113 is about 6488.3829264309. The cubic root of 42099113 is about 347.8758778067.

The spelling of 42099113 in words is "forty-two million, ninety-nine thousand, one hundred thirteen".