141705121 has 4 divisors (see below), whose sum is σ = 143108244. Its totient is φ = 140302000.

The previous prime is 141705119. The next prime is 141705131. The reversal of 141705121 is 121507141.

141705121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130782096 + 10923025 = 11436^2 + 3305^2 .

It is a cyclic number.

It is not a de Polignac number, because 141705121 - 2¹ = 141705119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 141705092 and 141705101.

It is not an unprimeable number, because it can be changed into a prime (141705131) 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, 701410 + ... + 701611.

It is an arithmetic number, because the mean of its divisors is an integer number (35777061).

Almost surely, 2^141705121 is an apocalyptic number.

It is an amenable number.

141705121 is a deficient number, since it is larger than the sum of its proper divisors (1403123).

141705121 is a wasteful number, since it uses less digits than its factorization.

141705121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403122.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 141705121 is about 11903.9960097440. The cubic root of 141705121 is about 521.3489642581.

It can be divided in two parts, 14170 and 5121, that added together give a palindrome (19291).

The spelling of 141705121 in words is "one hundred forty-one million, seven hundred five thousand, one hundred twenty-one".