151643647 has 2 divisors, whose sum is σ = 151643648. Its totient is φ = 151643646.

The previous prime is 151643633. The next prime is 151643651. The reversal of 151643647 is 746346151.

It is a strong prime.

It is an emirp because it is prime and its reverse (746346151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151643647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151643677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75821823 + 75821824.

It is an arithmetic number, because the mean of its divisors is an integer number (75821824).

Almost surely, 2^151643647 is an apocalyptic number.

151643647 is a deficient number, since it is larger than the sum of its proper divisors (1).

151643647 is an equidigital number, since it uses as much as digits as its factorization.

151643647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 151643647 is about 12314.3675030429. The cubic root of 151643647 is about 533.2629450944.

Adding to 151643647 its reverse (746346151), we get a palindrome (897989798).

The spelling of 151643647 in words is "one hundred fifty-one million, six hundred forty-three thousand, six hundred forty-seven".