123136270 has 16 divisors (see below), whose sum is σ = 234683568. Its totient is φ = 46357120.

The previous prime is 123136267. The next prime is 123136297. The reversal of 123136270 is 72631321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361996 + ... + 362335.

It is an arithmetic number, because the mean of its divisors is an integer number (14667723).

Almost surely, 2^123136270 is an apocalyptic number.

123136270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123136270 is a deficient number, since it is larger than the sum of its proper divisors (111547298).

123136270 is a wasteful number, since it uses less digits than its factorization.

123136270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724355.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 123136270 is about 11096.6783318252. The cubic root of 123136270 is about 497.5025731540.

Adding to 123136270 its reverse (72631321), we get a palindrome (195767591).

The spelling of 123136270 in words is "one hundred twenty-three million, one hundred thirty-six thousand, two hundred seventy".