151664423 has 2 divisors, whose sum is σ = 151664424. Its totient is φ = 151664422.

The previous prime is 151664417. The next prime is 151664503. The reversal of 151664423 is 324466151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151664423 - 2²⁰ = 150615847 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151664423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151664923) 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, 75832211 + 75832212.

It is an arithmetic number, because the mean of its divisors is an integer number (75832212).

Almost surely, 2^151664423 is an apocalyptic number.

151664423 is a deficient number, since it is larger than the sum of its proper divisors (1).

151664423 is an equidigital number, since it uses as much as digits as its factorization.

151664423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 151664423 is about 12315.2110416346. The cubic root of 151664423 is about 533.2872972851.

The spelling of 151664423 in words is "one hundred fifty-one million, six hundred sixty-four thousand, four hundred twenty-three".