134001521420 has 24 divisors (see below), whose sum is σ = 303049595184. Its totient is φ = 49477484736.

The previous prime is 134001521411. The next prime is 134001521471. The reversal of 134001521420 is 24125100431.

It is a zygodrome in base 2.

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, 257694974 + ... + 257695493.

It is an arithmetic number, because the mean of its divisors is an integer number (12627066466).

Almost surely, 2^134001521420 is an apocalyptic number.

134001521420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134001521420 is an abundant number, since it is smaller than the sum of its proper divisors (169048073764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134001521420 is a wasteful number, since it uses less digits than its factorization.

134001521420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515390489 (or 515390487 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 134001521420 its reverse (24125100431), we get a palindrome (158126621851).

The spelling of 134001521420 in words is "one hundred thirty-four billion, one million, five hundred twenty-one thousand, four hundred twenty".