140891346 has 32 divisors (see below), whose sum is σ = 329572800. Its totient is φ = 44491680.

The previous prime is 140891339. The next prime is 140891371. The reversal of 140891346 is 643198041.

It is a self number, because there is not a number n which added to its sum of digits gives 140891346.

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 15 ways as a sum of consecutive naturals, for example, 67635 + ... + 69686.

It is an arithmetic number, because the mean of its divisors is an integer number (10299150).

Almost surely, 2^140891346 is an apocalyptic number.

140891346 is an abundant number, since it is smaller than the sum of its proper divisors (188681454).

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

140891346 is a wasteful number, since it uses less digits than its factorization.

140891346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137351 (or 137345 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 140891346 is about 11869.7660465571. The cubic root of 140891346 is about 520.3490580433.

The spelling of 140891346 in words is "one hundred forty million, eight hundred ninety-one thousand, three hundred forty-six".