23742151 has 2 divisors, whose sum is σ = 23742152. Its totient is φ = 23742150.

The previous prime is 23742143. The next prime is 23742161. The reversal of 23742151 is 15124732.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23742151 - 2³ = 23742143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23742101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11871075 + 11871076.

It is an arithmetic number, because the mean of its divisors is an integer number (11871076).

Almost surely, 2^23742151 is an apocalyptic number.

23742151 is a deficient number, since it is larger than the sum of its proper divisors (1).

23742151 is an equidigital number, since it uses as much as digits as its factorization.

23742151 is an odious number, because the sum of its binary digits is odd.

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

The square root of 23742151 is about 4872.5918154510. The cubic root of 23742151 is about 287.4131851298.

Adding to 23742151 its reverse (15124732), we get a palindrome (38866883).

The spelling of 23742151 in words is "twenty-three million, seven hundred forty-two thousand, one hundred fifty-one".