147805125061 has 4 divisors (see below), whose sum is σ = 161241954624. Its totient is φ = 134368295500.

The previous prime is 147805125059. The next prime is 147805125067. The reversal of 147805125061 is 160521508741.

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 147805125061 - 2¹ = 147805125059 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 (147805125067) 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, 6718414765 + ... + 6718414786.

It is an arithmetic number, because the mean of its divisors is an integer number (40310488656).

Almost surely, 2^147805125061 is an apocalyptic number.

147805125061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

147805125061 is a deficient number, since it is larger than the sum of its proper divisors (13436829563).

147805125061 is a wasteful number, since it uses less digits than its factorization.

147805125061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13436829562.

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 147805125061 in words is "one hundred forty-seven billion, eight hundred five million, one hundred twenty-five thousand, sixty-one".