134361881 has 4 divisors (see below), whose sum is σ = 134552100. Its totient is φ = 134171664.

The previous prime is 134361841. The next prime is 134361907. The reversal of 134361881 is 188163431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10240000 + 124121881 = 3200^2 + 11141^2 .

It is a cyclic number.

It is not a de Polignac number, because 134361881 - 2¹⁸ = 134099737 is a prime.

It is a super-2 number, since 2×134361881² = 36106230131716322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134361841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94046 + ... + 95463.

It is an arithmetic number, because the mean of its divisors is an integer number (33638025).

Almost surely, 2^134361881 is an apocalyptic number.

It is an amenable number.

134361881 is a deficient number, since it is larger than the sum of its proper divisors (190219).

134361881 is an equidigital number, since it uses as much as digits as its factorization.

134361881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190218.

The product of its digits is 13824, while the sum is 35.

The square root of 134361881 is about 11591.4572422970. The cubic root of 134361881 is about 512.1832344346.

The spelling of 134361881 in words is "one hundred thirty-four million, three hundred sixty-one thousand, eight hundred eighty-one".