140259494 has 4 divisors (see below), whose sum is σ = 210389244. Its totient is φ = 70129746.

The previous prime is 140259467. The next prime is 140259517. The reversal of 140259494 is 494952041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494952041 = 41 ⋅12072001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35064872 + ... + 35064875.

It is an arithmetic number, because the mean of its divisors is an integer number (52597311).

Almost surely, 2^140259494 is an apocalyptic number.

140259494 is a deficient number, since it is larger than the sum of its proper divisors (70129750).

140259494 is an equidigital number, since it uses as much as digits as its factorization.

140259494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70129749.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 140259494 is about 11843.1201125379. The cubic root of 140259494 is about 519.5700267152.

The spelling of 140259494 in words is "one hundred forty million, two hundred fifty-nine thousand, four hundred ninety-four".