140078361 has 4 divisors (see below), whose sum is σ = 186771152. Its totient is φ = 93385572.

The previous prime is 140078359. The next prime is 140078369. The reversal of 140078361 is 163870041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 140078361 - 2¹ = 140078359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140078369) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23346391 + ... + 23346396.

It is an arithmetic number, because the mean of its divisors is an integer number (46692788).

Almost surely, 2^140078361 is an apocalyptic number.

It is an amenable number.

140078361 is a deficient number, since it is larger than the sum of its proper divisors (46692791).

140078361 is an equidigital number, since it uses as much as digits as its factorization.

140078361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46692790.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 140078361 is about 11835.4704595973. The cubic root of 140078361 is about 519.3462704563.

The spelling of 140078361 in words is "one hundred forty million, seventy-eight thousand, three hundred sixty-one".