117146890 has 16 divisors (see below), whose sum is σ = 240988032. Its totient is φ = 40164624.

The previous prime is 117146879. The next prime is 117146891. The reversal of 117146890 is 98641711.

It is not an unprimeable number, because it can be changed into a prime (117146891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836694 + ... + 836833.

It is an arithmetic number, because the mean of its divisors is an integer number (15061752).

Almost surely, 2^117146890 is an apocalyptic number.

117146890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117146890 is an abundant number, since it is smaller than the sum of its proper divisors (123841142).

117146890 is a wasteful number, since it uses less digits than its factorization.

117146890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673541.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 117146890 is about 10823.4416892225. The cubic root of 117146890 is about 489.3019214064.

The spelling of 117146890 in words is "one hundred seventeen million, one hundred forty-six thousand, eight hundred ninety".