134897154973 has 4 divisors (see below), whose sum is σ = 154168177120. Its totient is φ = 115626132828.

The previous prime is 134897154949. The next prime is 134897154979. The reversal of 134897154973 is 379451798431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134897154973 - 2¹³ = 134897146781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134897154979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9635511063 + ... + 9635511076.

It is an arithmetic number, because the mean of its divisors is an integer number (38542044280).

Almost surely, 2^134897154973 is an apocalyptic number.

It is an amenable number.

134897154973 is a deficient number, since it is larger than the sum of its proper divisors (19271022147).

134897154973 is an equidigital number, since it uses as much as digits as its factorization.

134897154973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19271022146.

The product of its digits is 22861440, while the sum is 61.

The spelling of 134897154973 in words is "one hundred thirty-four billion, eight hundred ninety-seven million, one hundred fifty-four thousand, nine hundred seventy-three".