22730139 has 30 divisors (see below), whose sum is σ = 36106884. Its totient is φ = 14247360.

The previous prime is 22730119. The next prime is 22730159. The reversal of 22730139 is 93103722.

It is an interprime number because it is at equal distance from previous prime (22730119) and next prime (22730159).

It is not a de Polignac number, because 22730139 - 2¹¹ = 22728091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22730119) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 22924 + ... + 23894.

Almost surely, 2^22730139 is an apocalyptic number.

22730139 is a deficient number, since it is larger than the sum of its proper divisors (13376745).

22730139 is an equidigital number, since it uses as much as digits as its factorization.

22730139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 22730139 is about 4767.6135539702. The cubic root of 22730139 is about 283.2700747665.

The spelling of 22730139 in words is "twenty-two million, seven hundred thirty thousand, one hundred thirty-nine".