23147293 has 16 divisors (see below), whose sum is σ = 25683840. Its totient is φ = 20729664.

The previous prime is 23147291. The next prime is 23147309. The reversal of 23147293 is 39274132.

It is a cyclic number.

It is not a de Polignac number, because 23147293 - 2¹ = 23147291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23147291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78855 + ... + 79147.

It is an arithmetic number, because the mean of its divisors is an integer number (1605240).

Almost surely, 2^23147293 is an apocalyptic number.

It is an amenable number.

23147293 is a deficient number, since it is larger than the sum of its proper divisors (2536547).

23147293 is a wasteful number, since it uses less digits than its factorization.

23147293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468.

The product of its digits is 9072, while the sum is 31.

The square root of 23147293 is about 4811.1633728237. The cubic root of 23147293 is about 284.9924815909.

It can be divided in two parts, 231 and 47293, that added together give a square (47524 = 218²).

The spelling of 23147293 in words is "twenty-three million, one hundred forty-seven thousand, two hundred ninety-three".