134222420 has 12 divisors (see below), whose sum is σ = 281867124. Its totient is φ = 53688960.

The previous prime is 134222401. The next prime is 134222423. The reversal of 134222420 is 24222431.

It can be written as a sum of positive squares in 2 ways, for example, as 16630084 + 117592336 = 4078^2 + 10844^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6711121 = 134222420 / (1 + 3 + 4 + 2 + 2 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 134222392 and 134222401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134222423) 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, 3355541 + ... + 3355580.

It is an arithmetic number, because the mean of its divisors is an integer number (23488927).

Almost surely, 2^134222420 is an apocalyptic number.

134222420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134222420 is an abundant number, since it is smaller than the sum of its proper divisors (147644704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134222420 is a wasteful number, since it uses less digits than its factorization.

134222420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6711130 (or 6711128 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 134222420 is about 11585.4400002762. The cubic root of 134222420 is about 512.0059661170.

Adding to 134222420 its reverse (24222431), we get a palindrome (158444851).

The spelling of 134222420 in words is "one hundred thirty-four million, two hundred twenty-two thousand, four hundred twenty".