134640421352 has 32 divisors (see below), whose sum is σ = 259172075520. Its totient is φ = 65542868160.

The previous prime is 134640421351. The next prime is 134640421381. The reversal of 134640421352 is 253124046431.

It is not an unprimeable number, because it can be changed into a prime (134640421351) 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, 865583 + ... + 1009214.

It is an arithmetic number, because the mean of its divisors is an integer number (8099127360).

Almost surely, 2^134640421352 is an apocalyptic number.

It is an amenable number.

134640421352 is a deficient number, since it is larger than the sum of its proper divisors (124531654168).

134640421352 is a wasteful number, since it uses less digits than its factorization.

134640421352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875041 (or 1875037 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 134640421352 its reverse (253124046431), we get a palindrome (387764467783).

The spelling of 134640421352 in words is "one hundred thirty-four billion, six hundred forty million, four hundred twenty-one thousand, three hundred fifty-two".