140651967 has 8 divisors (see below), whose sum is σ = 188425600. Its totient is φ = 93323160.

The previous prime is 140651933. The next prime is 140651971. The reversal of 140651967 is 769156041.

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

It is not a de Polignac number, because 140651967 - 2²⁰ = 139603391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140651267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110467 + ... + 111732.

It is an arithmetic number, because the mean of its divisors is an integer number (23553200).

Almost surely, 2^140651967 is an apocalyptic number.

140651967 is a deficient number, since it is larger than the sum of its proper divisors (47773633).

140651967 is a wasteful number, since it uses less digits than its factorization.

140651967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222413.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 140651967 is about 11859.6781996815. The cubic root of 140651967 is about 520.0541943024.

The spelling of 140651967 in words is "one hundred forty million, six hundred fifty-one thousand, nine hundred sixty-seven".