151321033 has 2 divisors, whose sum is σ = 151321034. Its totient is φ = 151321032.

The previous prime is 151321003. The next prime is 151321057. The reversal of 151321033 is 330123151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116899344 + 34421689 = 10812^2 + 5867^2 .

It is an emirp because it is prime and its reverse (330123151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151321033 - 2²¹ = 149223881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151321033.

It is not a weakly prime, because it can be changed into another prime (151321003) 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, 75660516 + 75660517.

It is an arithmetic number, because the mean of its divisors is an integer number (75660517).

Almost surely, 2^151321033 is an apocalyptic number.

It is an amenable number.

151321033 is a deficient number, since it is larger than the sum of its proper divisors (1).

151321033 is an equidigital number, since it uses as much as digits as its factorization.

151321033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 151321033 is about 12301.2614393809. The cubic root of 151321033 is about 532.8845135098.

Adding to 151321033 its reverse (330123151), we get a palindrome (481444184).

The spelling of 151321033 in words is "one hundred fifty-one million, three hundred twenty-one thousand, thirty-three".