117152780 has 24 divisors (see below), whose sum is σ = 260493408. Its totient is φ = 44104448.

The previous prime is 117152773. The next prime is 117152839. The reversal of 117152780 is 87251711.

117152780 = T₃₇₀₄ + T₃₇₀₅ + ... + T₃₇₂₀.

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, 171944 + ... + 172623.

It is an arithmetic number, because the mean of its divisors is an integer number (10853892).

Almost surely, 2^117152780 is an apocalyptic number.

117152780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117152780 is an abundant number, since it is smaller than the sum of its proper divisors (143340628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117152780 is a wasteful number, since it uses less digits than its factorization.

117152780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344593 (or 344591 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 32.

The square root of 117152780 is about 10823.7137803990. The cubic root of 117152780 is about 489.3101217664.

The spelling of 117152780 in words is "one hundred seventeen million, one hundred fifty-two thousand, seven hundred eighty".