141894145 has 4 divisors (see below), whose sum is σ = 170272980. Its totient is φ = 113515312.

The previous prime is 141894101. The next prime is 141894163. The reversal of 141894145 is 541498141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541498141 = 8663 ⋅62507.

It can be written as a sum of positive squares in 2 ways, for example, as 64577296 + 77316849 = 8036^2 + 8793^2 .

It is a cyclic number.

It is not a de Polignac number, because 141894145 - 2¹¹ = 141892097 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14189410 + ... + 14189419.

It is an arithmetic number, because the mean of its divisors is an integer number (42568245).

Almost surely, 2^141894145 is an apocalyptic number.

It is an amenable number.

141894145 is a deficient number, since it is larger than the sum of its proper divisors (28378835).

141894145 is an equidigital number, since it uses as much as digits as its factorization.

141894145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28378834.

The product of its digits is 23040, while the sum is 37.

The square root of 141894145 is about 11911.9328826182. The cubic root of 141894145 is about 521.5806747285.

The spelling of 141894145 in words is "one hundred forty-one million, eight hundred ninety-four thousand, one hundred forty-five".