134220031 has 4 divisors (see below), whose sum is σ = 146421864. Its totient is φ = 122018200.

The previous prime is 134219999. The next prime is 134220059. The reversal of 134220031 is 130022431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 134220031 - 2⁵ = 134219999 is a prime.

It is a super-2 number, since 2×134220031² = 36030033443281922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134219987 and 134220014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134220061) 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, 6100900 + ... + 6100921.

It is an arithmetic number, because the mean of its divisors is an integer number (36605466).

Almost surely, 2^134220031 is an apocalyptic number.

134220031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

134220031 is a deficient number, since it is larger than the sum of its proper divisors (12201833).

134220031 is a wasteful number, since it uses less digits than its factorization.

134220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12201832.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 134220031 is about 11585.3368962668. The cubic root of 134220031 is about 512.0029283992.

Adding to 134220031 its reverse (130022431), we get a palindrome (264242462).

The spelling of 134220031 in words is "one hundred thirty-four million, two hundred twenty thousand, thirty-one".