141249421 has 4 divisors (see below), whose sum is σ = 141313212. Its totient is φ = 141185632.

The previous prime is 141249419. The next prime is 141249431. The reversal of 141249421 is 124942141.

141249421 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 109202500 + 32046921 = 10450^2 + 5661^2 .

It is a cyclic number.

It is not a de Polignac number, because 141249421 - 2¹ = 141249419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 141249421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141249431) 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, 28450 + ... + 33043.

It is an arithmetic number, because the mean of its divisors is an integer number (35328303).

Almost surely, 2^141249421 is an apocalyptic number.

It is an amenable number.

141249421 is a deficient number, since it is larger than the sum of its proper divisors (63791).

141249421 is an equidigital number, since it uses as much as digits as its factorization.

141249421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63790.

The product of its digits is 2304, while the sum is 28.

The square root of 141249421 is about 11884.8399652667. The cubic root of 141249421 is about 520.7895070593.

The spelling of 141249421 in words is "one hundred forty-one million, two hundred forty-nine thousand, four hundred twenty-one".