134350861981 has 32 divisors (see below), whose sum is σ = 163349135360. Its totient is φ = 107938002816.

The previous prime is 134350861937. The next prime is 134350861999. The reversal of 134350861981 is 189168053431.

It is not a de Polignac number, because 134350861981 - 2¹³ = 134350853789 is a prime.

It is a super-2 number, since 2×134350861981² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134350861181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6188161 + ... + 6209833.

It is an arithmetic number, because the mean of its divisors is an integer number (5104660480).

Almost surely, 2^134350861981 is an apocalyptic number.

It is an amenable number.

134350861981 is a deficient number, since it is larger than the sum of its proper divisors (28998273379).

134350861981 is a wasteful number, since it uses less digits than its factorization.

134350861981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22193.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 134350861981 in words is "one hundred thirty-four billion, three hundred fifty million, eight hundred sixty-one thousand, nine hundred eighty-one".