23249139 has 8 divisors (see below), whose sum is σ = 31583952. Its totient is φ = 15206880.

The previous prime is 23249137. The next prime is 23249143. The reversal of 23249139 is 93194232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23249139 - 2¹ = 23249137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23249137) 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, 72952 + ... + 73269.

It is an arithmetic number, because the mean of its divisors is an integer number (3947994).

Almost surely, 2^23249139 is an apocalyptic number.

23249139 is a deficient number, since it is larger than the sum of its proper divisors (8334813).

23249139 is a wasteful number, since it uses less digits than its factorization.

23249139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146277.

The product of its digits is 11664, while the sum is 33.

The square root of 23249139 is about 4821.7360981290. The cubic root of 23249139 is about 285.4098504585.

The spelling of 23249139 in words is "twenty-three million, two hundred forty-nine thousand, one hundred thirty-nine".