140851994 has 8 divisors (see below), whose sum is σ = 211480308. Its totient is φ = 70358560.

The previous prime is 140851993. The next prime is 140852011. The reversal of 140851994 is 499158041.

It can be written as a sum of positive squares in 2 ways, for example, as 123321025 + 17530969 = 11105^2 + 4187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (140851993) 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, 31067 + ... + 35310.

Almost surely, 2^140851994 is an apocalyptic number.

140851994 is a deficient number, since it is larger than the sum of its proper divisors (70628314).

140851994 is a wasteful number, since it uses less digits than its factorization.

140851994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67440.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 140851994 is about 11868.1082738573. The cubic root of 140851994 is about 520.3006077458.

The spelling of 140851994 in words is "one hundred forty million, eight hundred fifty-one thousand, nine hundred ninety-four".