123401493 has 12 divisors (see below), whose sum is σ = 178607520. Its totient is φ = 82101096.

The previous prime is 123401449. The next prime is 123401501. The reversal of 123401493 is 394104321.

It is not a de Polignac number, because 123401493 - 2¹² = 123397397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123401423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9103 + ... + 18156.

It is an arithmetic number, because the mean of its divisors is an integer number (14883960).

Almost surely, 2^123401493 is an apocalyptic number.

It is an amenable number.

123401493 is a deficient number, since it is larger than the sum of its proper divisors (55206027).

123401493 is a wasteful number, since it uses less digits than its factorization.

123401493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27768 (or 27765 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 123401493 is about 11108.6224618537. The cubic root of 123401493 is about 497.8595069888.

The spelling of 123401493 in words is "one hundred twenty-three million, four hundred one thousand, four hundred ninety-three".