140502621 has 8 divisors (see below), whose sum is σ = 214099264. Its totient is φ = 80287200.

The previous prime is 140502617. The next prime is 140502641. The reversal of 140502621 is 126205041.

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

It is not a de Polignac number, because 140502621 - 2² = 140502617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6690601 = 140502621 / (1 + 4 + 0 + 5 + 0 + 2 + 6 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140502641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3345280 + ... + 3345321.

It is an arithmetic number, because the mean of its divisors is an integer number (26762408).

Almost surely, 2^140502621 is an apocalyptic number.

It is an amenable number.

140502621 is a deficient number, since it is larger than the sum of its proper divisors (73596643).

140502621 is an equidigital number, since it uses as much as digits as its factorization.

140502621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6690611.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 140502621 is about 11853.3801508262. The cubic root of 140502621 is about 519.8700624550.

Adding to 140502621 its reverse (126205041), we get a palindrome (266707662).

The spelling of 140502621 in words is "one hundred forty million, five hundred two thousand, six hundred twenty-one".