140387834 has 8 divisors (see below), whose sum is σ = 210838260. Its totient is φ = 70108416.

The previous prime is 140387801. The next prime is 140387839. The reversal of 140387834 is 438783041.

It can be written as a sum of positive squares in 2 ways, for example, as 130759225 + 9628609 = 11435^2 + 3103^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140387839) 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, 40679 + ... + 43994.

Almost surely, 2^140387834 is an apocalyptic number.

140387834 is a deficient number, since it is larger than the sum of its proper divisors (70450426).

140387834 is an equidigital number, since it uses as much as digits as its factorization.

140387834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85504.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 140387834 is about 11848.5372092930. The cubic root of 140387834 is about 519.7284504277.

The spelling of 140387834 in words is "one hundred forty million, three hundred eighty-seven thousand, eight hundred thirty-four".