147781086 has 16 divisors (see below), whose sum is σ = 296866944. Its totient is φ = 49042904.

The previous prime is 147781063. The next prime is 147781091. The reversal of 147781086 is 680187741.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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, 52890 + ... + 55613.

It is an arithmetic number, because the mean of its divisors is an integer number (18554184).

Almost surely, 2^147781086 is an apocalyptic number.

147781086 is an abundant number, since it is smaller than the sum of its proper divisors (149085858).

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

147781086 is a wasteful number, since it uses less digits than its factorization.

147781086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108735.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 147781086 is about 12156.5244210671. The cubic root of 147781086 is about 528.6963164428.

The spelling of 147781086 in words is "one hundred forty-seven million, seven hundred eighty-one thousand, eighty-six".