123493397 has 4 divisors (see below), whose sum is σ = 127751820. Its totient is φ = 119234976.

The previous prime is 123493379. The next prime is 123493399. The reversal of 123493397 is 793394321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47210641 + 76282756 = 6871^2 + 8734^2 .

It is a cyclic number.

It is not a de Polignac number, because 123493397 - 2⁶ = 123493333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123493399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2129168 + ... + 2129225.

It is an arithmetic number, because the mean of its divisors is an integer number (31937955).

Almost surely, 2^123493397 is an apocalyptic number.

It is an amenable number.

123493397 is a deficient number, since it is larger than the sum of its proper divisors (4258423).

123493397 is an equidigital number, since it uses as much as digits as its factorization.

123493397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258422.

The product of its digits is 122472, while the sum is 41.

The square root of 123493397 is about 11112.7582984604. The cubic root of 123493397 is about 497.9830709341.

The spelling of 123493397 in words is "one hundred twenty-three million, four hundred ninety-three thousand, three hundred ninety-seven".