140261166 has 32 divisors (see below), whose sum is σ = 312850080. Its totient is φ = 46579968.

The previous prime is 140261089. The next prime is 140261167. The reversal of 140261166 is 661162041.

140261166 is a `hidden beast` number, since 1 + 40 + 2 + 611 + 6 + 6 = 666.

140261166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140261167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10270 + ... + 19646.

It is an arithmetic number, because the mean of its divisors is an integer number (9776565).

Almost surely, 2^140261166 is an apocalyptic number.

140261166 is an abundant number, since it is smaller than the sum of its proper divisors (172588914).

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

140261166 is a wasteful number, since it uses less digits than its factorization.

140261166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9665 (or 9659 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 140261166 is about 11843.1907018337. The cubic root of 140261166 is about 519.5720912638.

The spelling of 140261166 in words is "one hundred forty million, two hundred sixty-one thousand, one hundred sixty-six".