140278099 has 4 divisors (see below), whose sum is σ = 151068736. Its totient is φ = 129487464.

The previous prime is 140278093. The next prime is 140278109. The reversal of 140278099 is 990872041.

140278099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140278099 - 2⁷ = 140277971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140278093) 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, 5395299 + ... + 5395324.

It is an arithmetic number, because the mean of its divisors is an integer number (37767184).

Almost surely, 2^140278099 is an apocalyptic number.

140278099 is a deficient number, since it is larger than the sum of its proper divisors (10790637).

140278099 is a wasteful number, since it uses less digits than its factorization.

140278099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10790636.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 140278099 is about 11843.9055636222. The cubic root of 140278099 is about 519.5929988332.

The spelling of 140278099 in words is "one hundred forty million, two hundred seventy-eight thousand, ninety-nine".