123453973 has 6 divisors (see below), whose sum is σ = 124179734. Its totient is φ = 122732424.

The previous prime is 123453971. The next prime is 123453991. The reversal of 123453973 is 379354321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 123165604 + 288369 = 11098^2 + 537^2 .

It is not a de Polignac number, because 123453973 - 2¹ = 123453971 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 (123453971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30115 + ... + 33967.

Almost surely, 2^123453973 is an apocalyptic number.

It is an amenable number.

123453973 is a deficient number, since it is larger than the sum of its proper divisors (725761).

123453973 is an frugal number, since it uses more digits than its factorization.

123453973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211 (or 4032 counting only the distinct ones).

The product of its digits is 68040, while the sum is 37.

The square root of 123453973 is about 11110.9843398324. The cubic root of 123453973 is about 497.9300732986.

The spelling of 123453973 in words is "one hundred twenty-three million, four hundred fifty-three thousand, nine hundred seventy-three".