23420151 has 8 divisors (see below), whose sum is σ = 34696560. Its totient is φ = 15613416.

The previous prime is 23420123. The next prime is 23420167. The reversal of 23420151 is 15102432.

It is not a de Polignac number, because 23420151 - 2⁵ = 23420119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420171) 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, 433680 + ... + 433733.

It is an arithmetic number, because the mean of its divisors is an integer number (4337070).

Almost surely, 2^23420151 is an apocalyptic number.

23420151 is a deficient number, since it is larger than the sum of its proper divisors (11276409).

23420151 is an equidigital number, since it uses as much as digits as its factorization.

23420151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867422 (or 867416 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 23420151 is about 4839.4370540384. The cubic root of 23420151 is about 286.1079311286.

Adding to 23420151 its reverse (15102432), we get a palindrome (38522583).

The spelling of 23420151 in words is "twenty-three million, four hundred twenty thousand, one hundred fifty-one".