151644133 has 2 divisors, whose sum is σ = 151644134. Its totient is φ = 151644132.

The previous prime is 151644121. The next prime is 151644139. The reversal of 151644133 is 331446151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87291649 + 64352484 = 9343^2 + 8022^2 .

It is a cyclic number.

It is not a de Polignac number, because 151644133 - 2²¹ = 149546981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151644139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75822066 + 75822067.

It is an arithmetic number, because the mean of its divisors is an integer number (75822067).

Almost surely, 2^151644133 is an apocalyptic number.

It is an amenable number.

151644133 is a deficient number, since it is larger than the sum of its proper divisors (1).

151644133 is an equidigital number, since it uses as much as digits as its factorization.

151644133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 151644133 is about 12314.3872360747. The cubic root of 151644133 is about 533.2635147754.

The spelling of 151644133 in words is "one hundred fifty-one million, six hundred forty-four thousand, one hundred thirty-three".