122543090 has 8 divisors (see below), whose sum is σ = 220577580. Its totient is φ = 49017232.

The previous prime is 122543081. The next prime is 122543119. The reversal of 122543090 is 90345221.

It can be written as a sum of positive squares in 2 ways, for example, as 106853569 + 15689521 = 10337^2 + 3961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6127145 + ... + 6127164.

Almost surely, 2^122543090 is an apocalyptic number.

122543090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122543090 is a deficient number, since it is larger than the sum of its proper divisors (98034490).

122543090 is a wasteful number, since it uses less digits than its factorization.

122543090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12254316.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 122543090 is about 11069.9182472139. The cubic root of 122543090 is about 496.7024197395.

The spelling of 122543090 in words is "one hundred twenty-two million, five hundred forty-three thousand, ninety".