123080690 has 8 divisors (see below), whose sum is σ = 221545260. Its totient is φ = 49232272.

The previous prime is 123080687. The next prime is 123080693. The reversal of 123080690 is 96080321.

It is an interprime number because it is at equal distance from previous prime (123080687) and next prime (123080693).

It can be written as a sum of positive squares in 2 ways, for example, as 121594729 + 1485961 = 11027^2 + 1219^2 .

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

It is a super-2 number, since 2×123080690² = 30297712501752200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123080693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6154025 + ... + 6154044.

Almost surely, 2^123080690 is an apocalyptic number.

123080690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123080690 is a deficient number, since it is larger than the sum of its proper divisors (98464570).

123080690 is a wasteful number, since it uses less digits than its factorization.

123080690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12308076.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 123080690 is about 11094.1736961344. The cubic root of 123080690 is about 497.4277093348.

The spelling of 123080690 in words is "one hundred twenty-three million, eighty thousand, six hundred ninety".