152940209 has 8 divisors (see below), whose sum is σ = 160005888. Its totient is φ = 146033440.

The previous prime is 152940173. The next prime is 152940217. The reversal of 152940209 is 902049251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 152940209 - 2⁸ = 152939953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152940259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37757 + ... + 41610.

It is an arithmetic number, because the mean of its divisors is an integer number (20000736).

Almost surely, 2^152940209 is an apocalyptic number.

It is an amenable number.

152940209 is a deficient number, since it is larger than the sum of its proper divisors (7065679).

152940209 is an equidigital number, since it uses as much as digits as its factorization.

152940209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79455.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 152940209 is about 12366.8997327544. The cubic root of 152940209 is about 534.7784437954.

The spelling of 152940209 in words is "one hundred fifty-two million, nine hundred forty thousand, two hundred nine".