147929009 has 2 divisors, whose sum is σ = 147929010. Its totient is φ = 147929008.

The previous prime is 147928969. The next prime is 147929027. The reversal of 147929009 is 900929741.

It is a happy number.

147929009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143400625 + 4528384 = 11975^2 + 2128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147929009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147929059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73964504 + 73964505.

It is an arithmetic number, because the mean of its divisors is an integer number (73964505).

Almost surely, 2^147929009 is an apocalyptic number.

It is an amenable number.

147929009 is a deficient number, since it is larger than the sum of its proper divisors (1).

147929009 is an equidigital number, since it uses as much as digits as its factorization.

147929009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 147929009 is about 12162.6069985016. The cubic root of 147929009 is about 528.8726589595.

The spelling of 147929009 in words is "one hundred forty-seven million, nine hundred twenty-nine thousand, nine".