147937198081 has 4 divisors (see below), whose sum is σ = 147941082964. Its totient is φ = 147933313200.

The previous prime is 147937198067. The next prime is 147937198103. The reversal of 147937198081 is 180891739741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102646548225 + 45290649856 = 320385^2 + 212816^2 .

It is a cyclic number.

It is not a de Polignac number, because 147937198081 - 2¹⁹ = 147936673793 is a prime.

It is a super-2 number, since 2×147937198081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147937198181) 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, 1884750 + ... + 1961671.

It is an arithmetic number, because the mean of its divisors is an integer number (36985270741).

Almost surely, 2^147937198081 is an apocalyptic number.

It is an amenable number.

147937198081 is a deficient number, since it is larger than the sum of its proper divisors (3884883).

147937198081 is an equidigital number, since it uses as much as digits as its factorization.

147937198081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884882.

The product of its (nonzero) digits is 3048192, while the sum is 58.

The spelling of 147937198081 in words is "one hundred forty-seven billion, nine hundred thirty-seven million, one hundred ninety-eight thousand, eighty-one".