134420144 has 10 divisors (see below), whose sum is σ = 260439060. Its totient is φ = 67210064.

The previous prime is 134420131. The next prime is 134420147. The reversal of 134420144 is 441024431.

It is a happy number.

It is a super-2 number, since 2×134420144² = 36137550225961472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134420147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4200614 + ... + 4200645.

It is an arithmetic number, because the mean of its divisors is an integer number (26043906).

Almost surely, 2^134420144 is an apocalyptic number.

It is an amenable number.

134420144 is a deficient number, since it is larger than the sum of its proper divisors (126018916).

134420144 is an equidigital number, since it uses as much as digits as its factorization.

134420144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8401267 (or 8401261 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 134420144 is about 11593.9701569393. The cubic root of 134420144 is about 512.2572559732.

Adding to 134420144 its reverse (441024431), we get a palindrome (575444575).

The spelling of 134420144 in words is "one hundred thirty-four million, four hundred twenty thousand, one hundred forty-four".