123749290162 has 4 divisors (see below), whose sum is σ = 185623935246. Its totient is φ = 61874645080.

The previous prime is 123749290141. The next prime is 123749290163. The reversal of 123749290162 is 261092947321.

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

It can be written as a sum of positive squares in only one way, i.e., 62670616281 + 61078673881 = 250341^2 + 247141^2 .

It is not an unprimeable number, because it can be changed into a prime (123749290163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30937322539 + ... + 30937322542.

Almost surely, 2^123749290162 is an apocalyptic number.

123749290162 is a deficient number, since it is larger than the sum of its proper divisors (61874645084).

123749290162 is an equidigital number, since it uses as much as digits as its factorization.

123749290162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61874645083.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 123749290162 in words is "one hundred twenty-three billion, seven hundred forty-nine million, two hundred ninety thousand, one hundred sixty-two".