151009 has 2 divisors, whose sum is σ = 151010. Its totient is φ = 151008.

The previous prime is 151007. The next prime is 151013. The reversal of 151009 is 900151.

151009 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., 90000 + 61009 = 300^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 151009 - 2¹ = 151007 is a prime.

Together with 151007, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 150983 and 151001.

It is not a weakly prime, because it can be changed into another prime (151007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75504 + 75505.

It is an arithmetic number, because the mean of its divisors is an integer number (75505).

2¹⁵¹⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

151009 is a deficient number, since it is larger than the sum of its proper divisors (1).

151009 is an equidigital number, since it uses as much as digits as its factorization.

151009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 151009 is about 388.5987647947. The cubic root of 151009 is about 53.2517981569.

It can be divided in two parts, 15 and 1009, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 151009 in words is "one hundred fifty-one thousand, nine".