123012153 has 24 divisors (see below), whose sum is σ = 205242336. Its totient is φ = 70166400.

The previous prime is 123012143. The next prime is 123012157. The reversal of 123012153 is 351210321.

It is not a de Polignac number, because 123012153 - 2⁶ = 123012089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123012157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34863 + ... + 38228.

It is an arithmetic number, because the mean of its divisors is an integer number (8551764).

Almost surely, 2^123012153 is an apocalyptic number.

It is an amenable number.

123012153 is a deficient number, since it is larger than the sum of its proper divisors (82230183).

123012153 is a wasteful number, since it uses less digits than its factorization.

123012153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73125 (or 73122 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 123012153 is about 11091.0843924298. The cubic root of 123012153 is about 497.3353619679.

Adding to 123012153 its reverse (351210321), we get a palindrome (474222474).

The spelling of 123012153 in words is "one hundred twenty-three million, twelve thousand, one hundred fifty-three".