23151542 has 16 divisors (see below), whose sum is σ = 35707392. Its totient is φ = 11252520.

The previous prime is 23151539. The next prime is 23151559. The reversal of 23151542 is 24515132.

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, 14567 + ... + 16077.

It is an arithmetic number, because the mean of its divisors is an integer number (2231712).

Almost surely, 2^23151542 is an apocalyptic number.

23151542 is a deficient number, since it is larger than the sum of its proper divisors (12555850).

23151542 is a wasteful number, since it uses less digits than its factorization.

23151542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723.

The product of its digits is 1200, while the sum is 23.

The square root of 23151542 is about 4811.6049297506. The cubic root of 23151542 is about 285.0099186042.

Adding to 23151542 its reverse (24515132), we get a palindrome (47666674).

The spelling of 23151542 in words is "twenty-three million, one hundred fifty-one thousand, five hundred forty-two".