140906901 has 8 divisors (see below), whose sum is σ = 196044480. Its totient is φ = 89853632.

The previous prime is 140906891. The next prime is 140906921. The reversal of 140906901 is 109609041.

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

It is a cyclic number.

It is not a de Polignac number, because 140906901 - 2⁶ = 140906837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140906921) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1020996 + ... + 1021133.

It is an arithmetic number, because the mean of its divisors is an integer number (24505560).

Almost surely, 2^140906901 is an apocalyptic number.

It is an amenable number.

140906901 is a deficient number, since it is larger than the sum of its proper divisors (55137579).

140906901 is a wasteful number, since it uses less digits than its factorization.

140906901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042155.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 140906901 is about 11870.4212646393. The cubic root of 140906901 is about 520.3682069169.

The spelling of 140906901 in words is "one hundred forty million, nine hundred six thousand, nine hundred one".