134047442 has 4 divisors (see below), whose sum is σ = 201071166. Its totient is φ = 67023720.

The previous prime is 134047423. The next prime is 134047471. The reversal of 134047442 is 244740431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244740431 = 13 ⋅18826187.

It can be written as a sum of positive squares in only one way, i.e., 86285521 + 47761921 = 9289^2 + 6911^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33511859 + ... + 33511862.

Almost surely, 2^134047442 is an apocalyptic number.

134047442 is a deficient number, since it is larger than the sum of its proper divisors (67023724).

134047442 is an equidigital number, since it uses as much as digits as its factorization.

134047442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67023723.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 134047442 is about 11577.8859037391. The cubic root of 134047442 is about 511.7833785166.

Adding to 134047442 its reverse (244740431), we get a palindrome (378787873).

The spelling of 134047442 in words is "one hundred thirty-four million, forty-seven thousand, four hundred forty-two".