140539901 has 8 divisors (see below), whose sum is σ = 149589504. Its totient is φ = 131577280.

The previous prime is 140539897. The next prime is 140539909. The reversal of 140539901 is 109935041.

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

It is not a de Polignac number, because 140539901 - 2² = 140539897 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 (140539909) 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, 18395 + ... + 24888.

It is an arithmetic number, because the mean of its divisors is an integer number (18698688).

Almost surely, 2^140539901 is an apocalyptic number.

It is an amenable number.

140539901 is a deficient number, since it is larger than the sum of its proper divisors (9049603).

140539901 is a wasteful number, since it uses less digits than its factorization.

140539901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43491.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 140539901 is about 11854.9525937475. The cubic root of 140539901 is about 519.9160379724.

Subtracting from 140539901 its product of nonzero digits (4860), we obtain a palindrome (140535041).

The spelling of 140539901 in words is "one hundred forty million, five hundred thirty-nine thousand, nine hundred one".