151240213 has 2 divisors, whose sum is σ = 151240214. Its totient is φ = 151240212.

The previous prime is 151240181. The next prime is 151240223. The reversal of 151240213 is 312042151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146942884 + 4297329 = 12122^2 + 2073^2 .

It is an emirp because it is prime and its reverse (312042151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151240213 - 2⁵ = 151240181 is a prime.

It is a super-3 number, since 3×151240213³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151240223) 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, 75620106 + 75620107.

It is an arithmetic number, because the mean of its divisors is an integer number (75620107).

Almost surely, 2^151240213 is an apocalyptic number.

It is an amenable number.

151240213 is a deficient number, since it is larger than the sum of its proper divisors (1).

151240213 is an equidigital number, since it uses as much as digits as its factorization.

151240213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 151240213 is about 12297.9759716792. The cubic root of 151240213 is about 532.7896260703.

Adding to 151240213 its reverse (312042151), we get a palindrome (463282364).

The spelling of 151240213 in words is "one hundred fifty-one million, two hundred forty thousand, two hundred thirteen".