147261488045381 has 4 divisors (see below), whose sum is σ = 147509821078092. Its totient is φ = 147013155012672.

The previous prime is 147261488045333. The next prime is 147261488045431. The reversal of 147261488045381 is 183540884162741.

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 60286932265156 + 86974555780225 = 7764466^2 + 9326015^2 .

It is a cyclic number.

It is not a de Polignac number, because 147261488045381 - 2²² = 147261483851077 is a prime.

It is a super-2 number, since 2×147261488045381² (a number of 29 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 (147261488045081) 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, 124166515466 + ... + 124166516651.

It is an arithmetic number, because the mean of its divisors is an integer number (36877455269523).

Almost surely, 2^{147261488045381} is an apocalyptic number.

It is an amenable number.

147261488045381 is a deficient number, since it is larger than the sum of its proper divisors (248333032711).

147261488045381 is an equidigital number, since it uses as much as digits as its factorization.

147261488045381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248333032710.

The product of its (nonzero) digits is 41287680, while the sum is 62.

The spelling of 147261488045381 in words is "one hundred forty-seven trillion, two hundred sixty-one billion, four hundred eighty-eight million, forty-five thousand, three hundred eighty-one".