23373139 has 4 divisors (see below), whose sum is σ = 23528080. Its totient is φ = 23218200.

The previous prime is 23373137. The next prime is 23373149. The reversal of 23373139 is 93137332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23373139 - 2¹ = 23373137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23373139.

It is not an unprimeable number, because it can be changed into a prime (23373131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77244 + ... + 77545.

It is an arithmetic number, because the mean of its divisors is an integer number (5882020).

Almost surely, 2^23373139 is an apocalyptic number.

23373139 is a deficient number, since it is larger than the sum of its proper divisors (154941).

23373139 is a wasteful number, since it uses less digits than its factorization.

23373139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154940.

The product of its digits is 10206, while the sum is 31.

The square root of 23373139 is about 4834.5774375844. The cubic root of 23373139 is about 285.9163650996.

It can be divided in two parts, 2337 and 3139, that added together give a square (5476 = 74²).

The spelling of 23373139 in words is "twenty-three million, three hundred seventy-three thousand, one hundred thirty-nine".