141775921 has 8 divisors (see below), whose sum is σ = 162483840. Its totient is φ = 121181568.

The previous prime is 141775889. The next prime is 141775943. The reversal of 141775921 is 129577141.

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 141775921 - 2⁵ = 141775889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141775421) 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, 25696 + ... + 30721.

It is an arithmetic number, because the mean of its divisors is an integer number (20310480).

Almost surely, 2^141775921 is an apocalyptic number.

It is an amenable number.

141775921 is a deficient number, since it is larger than the sum of its proper divisors (20707919).

141775921 is an equidigital number, since it uses as much as digits as its factorization.

141775921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56783.

The product of its digits is 17640, while the sum is 37.

The square root of 141775921 is about 11906.9694297080. The cubic root of 141775921 is about 521.4357768370.

The spelling of 141775921 in words is "one hundred forty-one million, seven hundred seventy-five thousand, nine hundred twenty-one".