123294489 has 16 divisors (see below), whose sum is σ = 177769728. Its totient is φ = 75713792.

The previous prime is 123294473. The next prime is 123294491. The reversal of 123294489 is 984492321.

123294489 = T₂₂₆₇ + T₂₂₆₈ + ... + T₂₃₁₃.

It is a cyclic number.

It is not a de Polignac number, because 123294489 - 2⁴ = 123294473 is a prime.

It is a super-2 number, since 2×123294489² = 30403062035542242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 123294489.

It is not an unprimeable number, because it can be changed into a prime (123294419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23322 + ... + 28115.

It is an arithmetic number, because the mean of its divisors is an integer number (11110608).

Almost surely, 2^123294489 is an apocalyptic number.

It is an amenable number.

123294489 is a deficient number, since it is larger than the sum of its proper divisors (54475239).

123294489 is a wasteful number, since it uses less digits than its factorization.

123294489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51504.

The product of its digits is 124416, while the sum is 42.

The square root of 123294489 is about 11103.8051585932. The cubic root of 123294489 is about 497.7155639326.

The spelling of 123294489 in words is "one hundred twenty-three million, two hundred ninety-four thousand, four hundred eighty-nine".