12270158 has 16 divisors (see below), whose sum is σ = 19613664. Its totient is φ = 5736960.

The previous prime is 12270157. The next prime is 12270169. The reversal of 12270158 is 85107221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12270157) 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, 4598 + ... + 6758.

It is an arithmetic number, because the mean of its divisors is an integer number (1225854).

Almost surely, 2^12270158 is an apocalyptic number.

12270158 is a deficient number, since it is larger than the sum of its proper divisors (7343506).

12270158 is a wasteful number, since it uses less digits than its factorization.

12270158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 12270158 is about 3502.8785305802. The cubic root of 12270158 is about 230.6481904447.

Adding to 12270158 its reverse (85107221), we get a palindrome (97377379).

The spelling of 12270158 in words is "twelve million, two hundred seventy thousand, one hundred fifty-eight".