147368261 has 4 divisors (see below), whose sum is σ = 147487500. Its totient is φ = 147249024.

The previous prime is 147368251. The next prime is 147368269. The reversal of 147368261 is 162863741.

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 54612100 + 92756161 = 7390^2 + 9631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147368261 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 (147368269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57746 + ... + 60243.

It is an arithmetic number, because the mean of its divisors is an integer number (36871875).

Almost surely, 2^147368261 is an apocalyptic number.

It is an amenable number.

147368261 is a deficient number, since it is larger than the sum of its proper divisors (119239).

147368261 is a wasteful number, since it uses less digits than its factorization.

147368261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119238.

The product of its digits is 48384, while the sum is 38.

The square root of 147368261 is about 12139.5329811323. The cubic root of 147368261 is about 528.2035546747.

The spelling of 147368261 in words is "one hundred forty-seven million, three hundred sixty-eight thousand, two hundred sixty-one".