140505101 has 8 divisors (see below), whose sum is σ = 155001600. Its totient is φ = 126295840.

The previous prime is 140505089. The next prime is 140505161. The reversal of 140505101 is 101505041.

140505101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 140505101 - 2¹⁸ = 140242957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140505101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140505161) 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, 70781 + ... + 72738.

It is an arithmetic number, because the mean of its divisors is an integer number (19375200).

Almost surely, 2^140505101 is an apocalyptic number.

140505101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140505101 is a deficient number, since it is larger than the sum of its proper divisors (14496499).

140505101 is a wasteful number, since it uses less digits than its factorization.

140505101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143619.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 140505101 is about 11853.4847618749. The cubic root of 140505101 is about 519.8731211647.

The spelling of 140505101 in words is "one hundred forty million, five hundred five thousand, one hundred one".