140078196 has 18 divisors (see below), whose sum is σ = 354086642. Its totient is φ = 46692720.

The previous prime is 140078153. The next prime is 140078209. The reversal of 140078196 is 691870041.

It can be written as a sum of positive squares in only one way, i.e., 98010000 + 42068196 = 9900^2 + 6486^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×140078196² = 39243801989228832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3891061 = 140078196 / (1 + 4 + 0 + 0 + 7 + 8 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 140078196.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1945495 + ... + 1945566.

Almost surely, 2^140078196 is an apocalyptic number.

It is an amenable number.

140078196 is an abundant number, since it is smaller than the sum of its proper divisors (214008446).

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

140078196 is a wasteful number, since it uses less digits than its factorization.

140078196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891071 (or 3891066 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 140078196 is about 11835.4634890231. The cubic root of 140078196 is about 519.3460665415.

The spelling of 140078196 in words is "one hundred forty million, seventy-eight thousand, one hundred ninety-six".