23420135 has 8 divisors (see below), whose sum is σ = 29757456. Its totient is φ = 17633920.

The previous prime is 23420123. The next prime is 23420167. The reversal of 23420135 is 53102432.

It is a happy number.

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

It is not a de Polignac number, because 23420135 - 2⁴ = 23420119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137681 + ... + 137850.

It is an arithmetic number, because the mean of its divisors is an integer number (3719682).

Almost surely, 2^23420135 is an apocalyptic number.

23420135 is a deficient number, since it is larger than the sum of its proper divisors (6337321).

23420135 is a wasteful number, since it uses less digits than its factorization.

23420135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275553.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23420135 is about 4839.4354009533. The cubic root of 23420135 is about 286.1078659749.

Adding to 23420135 its reverse (53102432), we get a palindrome (76522567).

The spelling of 23420135 in words is "twenty-three million, four hundred twenty thousand, one hundred thirty-five".