134423621144 has 32 divisors (see below), whose sum is σ = 266894838000. Its totient is φ = 63252387840.

The previous prime is 134423621107. The next prime is 134423621147. The reversal of 134423621144 is 441126324431.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134423621147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691207 + ... + 1768905.

Almost surely, 2^134423621144 is an apocalyptic number.

It is an amenable number.

134423621144 is a deficient number, since it is larger than the sum of its proper divisors (132471216856).

134423621144 is a wasteful number, since it uses less digits than its factorization.

134423621144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90443 (or 90439 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

Adding to 134423621144 its reverse (441126324431), we get a palindrome (575549945575).

The spelling of 134423621144 in words is "one hundred thirty-four billion, four hundred twenty-three million, six hundred twenty-one thousand, one hundred forty-four".