123194745 has 12 divisors (see below), whose sum is σ = 213537636. Its totient is φ = 65703840.

The previous prime is 123194717. The next prime is 123194761. The reversal of 123194745 is 547491321.

It can be written as a sum of positive squares in 2 ways, for example, as 39087504 + 84107241 = 6252^2 + 9171^2 .

It is not a de Polignac number, because 123194745 - 2¹¹ = 123192697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1368786 + ... + 1368875.

It is an arithmetic number, because the mean of its divisors is an integer number (17794803).

Almost surely, 2^123194745 is an apocalyptic number.

123194745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123194745 is a deficient number, since it is larger than the sum of its proper divisors (90342891).

123194745 is a wasteful number, since it uses less digits than its factorization.

123194745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737672 (or 2737669 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 123194745 is about 11099.3128165666. The cubic root of 123194745 is about 497.5813120969.

The spelling of 123194745 in words is "one hundred twenty-three million, one hundred ninety-four thousand, seven hundred forty-five".