23501493 has 6 divisors (see below), whose sum is σ = 33946614. Its totient is φ = 15667656.

The previous prime is 23501459. The next prime is 23501507. The reversal of 23501493 is 39410532.

It can be written as a sum of positive squares in only one way, i.e., 23213124 + 288369 = 4818^2 + 537^2 .

It is not a de Polignac number, because 23501493 - 2¹⁶ = 23435957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23501453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1305630 + ... + 1305647.

It is an arithmetic number, because the mean of its divisors is an integer number (5657769).

Almost surely, 2^23501493 is an apocalyptic number.

It is an amenable number.

23501493 is a deficient number, since it is larger than the sum of its proper divisors (10445121).

23501493 is a wasteful number, since it uses less digits than its factorization.

23501493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611283 (or 2611280 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 23501493 is about 4847.8338461626. The cubic root of 23501493 is about 286.4387815436.

The spelling of 23501493 in words is "twenty-three million, five hundred one thousand, four hundred ninety-three".