141697221 has 4 divisors (see below), whose sum is σ = 188929632. Its totient is φ = 94464812.

The previous prime is 141697217. The next prime is 141697223. The reversal of 141697221 is 122796141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 141697221 - 2² = 141697217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141697223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23616201 + ... + 23616206.

It is an arithmetic number, because the mean of its divisors is an integer number (47232408).

Almost surely, 2^141697221 is an apocalyptic number.

It is an amenable number.

141697221 is a deficient number, since it is larger than the sum of its proper divisors (47232411).

141697221 is an equidigital number, since it uses as much as digits as its factorization.

141697221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47232410.

The product of its digits is 6048, while the sum is 33.

The square root of 141697221 is about 11903.6641837713. The cubic root of 141697221 is about 521.3392757506.

The spelling of 141697221 in words is "one hundred forty-one million, six hundred ninety-seven thousand, two hundred twenty-one".