140846621 has 8 divisors (see below), whose sum is σ = 144579288. Its totient is φ = 137160000.

The previous prime is 140846617. The next prime is 140846623. The reversal of 140846621 is 126648041.

It can be written as a sum of positive squares in 4 ways, for example, as 51638596 + 89208025 = 7186^2 + 9445^2 .

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 140846621 - 2² = 140846617 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 (140846623) 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, 5270 + ... + 17591.

It is an arithmetic number, because the mean of its divisors is an integer number (18072411).

Almost surely, 2^140846621 is an apocalyptic number.

It is an amenable number.

140846621 is a deficient number, since it is larger than the sum of its proper divisors (3732667).

140846621 is a wasteful number, since it uses less digits than its factorization.

140846621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23023.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 140846621 is about 11867.8819087485. The cubic root of 140846621 is about 520.2939917924.

The spelling of 140846621 in words is "one hundred forty million, eight hundred forty-six thousand, six hundred twenty-one".