141405881 has 8 divisors (see below), whose sum is σ = 149837544. Its totient is φ = 132986880.

The previous prime is 141405853. The next prime is 141405893. The reversal of 141405881 is 188504141.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4141225 + 137264656 = 2035^2 + 11716^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 141405881 - 2²⁶ = 74297017 is a prime.

It is a super-2 number, since 2×141405881² = 39991246362772322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141405841) 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, 29621 + ... + 34061.

It is an arithmetic number, because the mean of its divisors is an integer number (18729693).

Almost surely, 2^141405881 is an apocalyptic number.

It is an amenable number.

141405881 is a deficient number, since it is larger than the sum of its proper divisors (8431663).

141405881 is a wasteful number, since it uses less digits than its factorization.

141405881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 141405881 is about 11891.4204786476. The cubic root of 141405881 is about 520.9817265116.

The spelling of 141405881 in words is "one hundred forty-one million, four hundred five thousand, eight hundred eighty-one".