140715221 has 8 divisors (see below), whose sum is σ = 148954080. Its totient is φ = 132702192.

The previous prime is 140715217. The next prime is 140715229. The reversal of 140715221 is 122517041.

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 140715221 - 2² = 140715217 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 (140715229) 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, 55175 + ... + 57668.

It is an arithmetic number, because the mean of its divisors is an integer number (18619260).

Almost surely, 2^140715221 is an apocalyptic number.

It is an amenable number.

140715221 is a deficient number, since it is larger than the sum of its proper divisors (8238859).

140715221 is a wasteful number, since it uses less digits than its factorization.

140715221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112915.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 140715221 is about 11862.3446670547. The cubic root of 140715221 is about 520.1321422062.

The spelling of 140715221 in words is "one hundred forty million, seven hundred fifteen thousand, two hundred twenty-one".