123827290 has 16 divisors (see below), whose sum is σ = 225188712. Its totient is φ = 49019904.

The previous prime is 123827287. The next prime is 123827311. The reversal of 123827290 is 92728321.

It can be written as a sum of positive squares in 4 ways, for example, as 54154881 + 69672409 = 7359^2 + 8347^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62859 + ... + 64798.

Almost surely, 2^123827290 is an apocalyptic number.

123827290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123827290 is a deficient number, since it is larger than the sum of its proper divisors (101361422).

123827290 is a wasteful number, since it uses less digits than its factorization.

123827290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127761.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 123827290 is about 11127.7711155469. The cubic root of 123827290 is about 498.4314712471.

The spelling of 123827290 in words is "one hundred twenty-three million, eight hundred twenty-seven thousand, two hundred ninety".