141801381 has 8 divisors (see below), whose sum is σ = 210076160. Its totient is φ = 94534236.

The previous prime is 141801377. The next prime is 141801431. The reversal of 141801381 is 183108141.

It is not a de Polignac number, because 141801381 - 2² = 141801377 is a prime.

It is a super-2 number, since 2×141801381² = 40215263307014322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5251903 = 141801381 / (1 + 4 + 1 + 8 + 0 + 1 + 3 + 8 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141803381) 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, 2625925 + ... + 2625978.

It is an arithmetic number, because the mean of its divisors is an integer number (26259520).

Almost surely, 2^141801381 is an apocalyptic number.

It is an amenable number.

141801381 is a deficient number, since it is larger than the sum of its proper divisors (68274779).

141801381 is an equidigital number, since it uses as much as digits as its factorization.

141801381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251912 (or 5251906 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 141801381 is about 11908.0385034648. The cubic root of 141801381 is about 521.4669879675.

The spelling of 141801381 in words is "one hundred forty-one million, eight hundred one thousand, three hundred eighty-one".