151530211 has 4 divisors (see below), whose sum is σ = 173177392. Its totient is φ = 129883032.

The previous prime is 151530193. The next prime is 151530217. The reversal of 151530211 is 112035151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 151530211 - 2⁹ = 151529699 is a prime.

It is a super-2 number, since 2×151530211² = 45922809691409042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151530217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10823580 + ... + 10823593.

It is an arithmetic number, because the mean of its divisors is an integer number (43294348).

Almost surely, 2^151530211 is an apocalyptic number.

151530211 is a deficient number, since it is larger than the sum of its proper divisors (21647181).

151530211 is an equidigital number, since it uses as much as digits as its factorization.

151530211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21647180.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 151530211 is about 12309.7608019003. The cubic root of 151530211 is about 533.1299440175.

Adding to 151530211 its reverse (112035151), we get a palindrome (263565362).

The spelling of 151530211 in words is "one hundred fifty-one million, five hundred thirty thousand, two hundred eleven".