140372643 has 8 divisors (see below), whose sum is σ = 191728656. Its totient is φ = 91299200.

The previous prime is 140372641. The next prime is 140372647. The reversal of 140372643 is 346273041.

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 140372643 - 2¹ = 140372641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140372643.

It is not an unprimeable number, because it can be changed into a prime (140372641) 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, 570498 + ... + 570743.

It is an arithmetic number, because the mean of its divisors is an integer number (23966082).

Almost surely, 2^140372643 is an apocalyptic number.

140372643 is a deficient number, since it is larger than the sum of its proper divisors (51356013).

140372643 is a wasteful number, since it uses less digits than its factorization.

140372643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141285.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 140372643 is about 11847.8961423537. The cubic root of 140372643 is about 519.7097035998.

The spelling of 140372643 in words is "one hundred forty million, three hundred seventy-two thousand, six hundred forty-three".