135521400214 has 8 divisors (see below), whose sum is σ = 203285337120. Its totient is φ = 67759621176.

The previous prime is 135521400197. The next prime is 135521400233. The reversal of 135521400214 is 412004125531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372069 + ... + 639904.

It is an arithmetic number, because the mean of its divisors is an integer number (25410667140).

Almost surely, 2^135521400214 is an apocalyptic number.

135521400214 is a deficient number, since it is larger than the sum of its proper divisors (67763936906).

135521400214 is a wasteful number, since it uses less digits than its factorization.

135521400214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078934.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 135521400214 its reverse (412004125531), we get a palindrome (547525525745).

The spelling of 135521400214 in words is "one hundred thirty-five billion, five hundred twenty-one million, four hundred thousand, two hundred fourteen".