135440443523432 has 32 divisors (see below), whose sum is σ = 263318322247680. Its totient is φ = 65241816396480.

The previous prime is 135440443523353. The next prime is 135440443523453. The reversal of 135440443523432 is 234325344044531.

It is a super-2 number, since 2×135440443523432² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224453263 + ... + 1224563870.

It is an arithmetic number, because the mean of its divisors is an integer number (8228697570240).

Almost surely, 2^{135440443523432} is an apocalyptic number.

It is an amenable number.

135440443523432 is a deficient number, since it is larger than the sum of its proper divisors (127877878724248).

135440443523432 is a wasteful number, since it uses less digits than its factorization.

135440443523432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449017393 (or 2449017389 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 47.

Adding to 135440443523432 its reverse (234325344044531), we get a palindrome (369765787567963).

The spelling of 135440443523432 in words is "one hundred thirty-five trillion, four hundred forty billion, four hundred forty-three million, five hundred twenty-three thousand, four hundred thirty-two".