147918461 has 2 divisors, whose sum is σ = 147918462. Its totient is φ = 147918460.

The previous prime is 147918443. The next prime is 147918493. The reversal of 147918461 is 164819741.

147918461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91202500 + 56715961 = 9550^2 + 7531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147918461 is a prime.

It is a super-2 number, since 2×147918461² = 43759742209217042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147918431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73959230 + 73959231.

It is an arithmetic number, because the mean of its divisors is an integer number (73959231).

Almost surely, 2^147918461 is an apocalyptic number.

It is an amenable number.

147918461 is a deficient number, since it is larger than the sum of its proper divisors (1).

147918461 is an equidigital number, since it uses as much as digits as its factorization.

147918461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 147918461 is about 12162.1733666315. The cubic root of 147918461 is about 528.8600883320.

The spelling of 147918461 in words is "one hundred forty-seven million, nine hundred eighteen thousand, four hundred sixty-one".