141781855 has 4 divisors (see below), whose sum is σ = 170138232. Its totient is φ = 113425480.

The previous prime is 141781799. The next prime is 141781883. The reversal of 141781855 is 558187141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 558187141 = 59 ⋅9460799.

It is not a de Polignac number, because 141781855 - 2⁷ = 141781727 is a prime.

It is a super-3 number, since 3×141781855³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14178181 + ... + 14178190.

It is an arithmetic number, because the mean of its divisors is an integer number (42534558).

Almost surely, 2^141781855 is an apocalyptic number.

141781855 is a deficient number, since it is larger than the sum of its proper divisors (28356377).

141781855 is an equidigital number, since it uses as much as digits as its factorization.

141781855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28356376.

The product of its digits is 44800, while the sum is 40.

The square root of 141781855 is about 11907.2186088944. The cubic root of 141781855 is about 521.4430515955.

The spelling of 141781855 in words is "one hundred forty-one million, seven hundred eighty-one thousand, eight hundred fifty-five".