130134442 has 4 divisors (see below), whose sum is σ = 195201666. Its totient is φ = 65067220.

The previous prime is 130134427. The next prime is 130134449. The reversal of 130134442 is 244431031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244431031 = 13 ⋅18802387.

It can be written as a sum of positive squares in only one way, i.e., 117961321 + 12173121 = 10861^2 + 3489^2 .

It is not an unprimeable number, because it can be changed into a prime (130134449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32533609 + ... + 32533612.

Almost surely, 2^130134442 is an apocalyptic number.

130134442 is a deficient number, since it is larger than the sum of its proper divisors (65067224).

130134442 is an equidigital number, since it uses as much as digits as its factorization.

130134442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65067223.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 130134442 is about 11407.6483992101. The cubic root of 130134442 is about 506.7542714593.

Adding to 130134442 its reverse (244431031), we get a palindrome (374565473).

The spelling of 130134442 in words is "one hundred thirty million, one hundred thirty-four thousand, four hundred forty-two".