147892109 has 2 divisors, whose sum is σ = 147892110. Its totient is φ = 147892108.

The previous prime is 147892091. The next prime is 147892111. The reversal of 147892109 is 901298741.

Together with previous prime (147892091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118156900 + 29735209 = 10870^2 + 5453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147892109 is a prime.

Together with 147892111, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147892159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73946054 + 73946055.

It is an arithmetic number, because the mean of its divisors is an integer number (73946055).

Almost surely, 2^147892109 is an apocalyptic number.

It is an amenable number.

147892109 is a deficient number, since it is larger than the sum of its proper divisors (1).

147892109 is an equidigital number, since it uses as much as digits as its factorization.

147892109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 147892109 is about 12161.0899593745. The cubic root of 147892109 is about 528.8286806032.

The spelling of 147892109 in words is "one hundred forty-seven million, eight hundred ninety-two thousand, one hundred nine".