141778442 has 16 divisors (see below), whose sum is σ = 231789600. Its totient is φ = 64646832.

The previous prime is 141778397. The next prime is 141778459. The reversal of 141778442 is 244877141.

It is a super-2 number, since 2×141778442² = 40202253231894728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 141778396 and 141778405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30692 + ... + 35007.

It is an arithmetic number, because the mean of its divisors is an integer number (14486850).

Almost surely, 2^141778442 is an apocalyptic number.

141778442 is a deficient number, since it is larger than the sum of its proper divisors (90011158).

141778442 is a wasteful number, since it uses less digits than its factorization.

141778442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65797.

The product of its digits is 50176, while the sum is 38.

The square root of 141778442 is about 11907.0752916071. The cubic root of 141778442 is about 521.4388674695.

The spelling of 141778442 in words is "one hundred forty-one million, seven hundred seventy-eight thousand, four hundred forty-two".