141745021 has 12 divisors (see below), whose sum is σ = 161652960. Its totient is φ = 123251480.

The previous prime is 141745007. The next prime is 141745027. The reversal of 141745021 is 120547141.

It is not a de Polignac number, because 141745021 - 2¹¹ = 141742973 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 (141745027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6361 + ... + 17998.

It is an arithmetic number, because the mean of its divisors is an integer number (13471080).

Almost surely, 2^141745021 is an apocalyptic number.

141745021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

141745021 is a deficient number, since it is larger than the sum of its proper divisors (19907939).

141745021 is a wasteful number, since it uses less digits than its factorization.

141745021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24416 (or 24393 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 141745021 is about 11905.6717996088. The cubic root of 141745021 is about 521.3978918514.

The spelling of 141745021 in words is "one hundred forty-one million, seven hundred forty-five thousand, twenty-one".