981254541595 has 4 divisors (see below), whose sum is σ = 1177505449920. Its totient is φ = 785003633272.

The previous prime is 981254541583. The next prime is 981254541653. The reversal of 981254541595 is 595145452189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 595145452189 = 947 ⋅628453487.

It is a cyclic number.

It is not a de Polignac number, because 981254541595 - 2⁷ = 981254541467 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98125454155 + ... + 98125454164.

It is an arithmetic number, because the mean of its divisors is an integer number (294376362480).

Almost surely, 2^981254541595 is an apocalyptic number.

981254541595 is a deficient number, since it is larger than the sum of its proper divisors (196250908325).

981254541595 is a wasteful number, since it uses less digits than its factorization.

981254541595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196250908324.

The product of its digits is 12960000, while the sum is 58.

The spelling of 981254541595 in words is "nine hundred eighty-one billion, two hundred fifty-four million, five hundred forty-one thousand, five hundred ninety-five".