151564969 has 2 divisors, whose sum is σ = 151564970. Its totient is φ = 151564968.

The previous prime is 151564961. The next prime is 151565017. The reversal of 151564969 is 969465151.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150994944 + 570025 = 12288^2 + 755^2 .

It is an emirp because it is prime and its reverse (969465151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151564969 - 2³ = 151564961 is a prime.

It is a super-2 number, since 2×151564969² = 45943879655941922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151564961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75782484 + 75782485.

It is an arithmetic number, because the mean of its divisors is an integer number (75782485).

Almost surely, 2^151564969 is an apocalyptic number.

It is an amenable number.

151564969 is a deficient number, since it is larger than the sum of its proper divisors (1).

151564969 is an equidigital number, since it uses as much as digits as its factorization.

151564969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 46.

The square root of 151564969 is about 12311.1725274240. The cubic root of 151564969 is about 533.1707040169.

The spelling of 151564969 in words is "one hundred fifty-one million, five hundred sixty-four thousand, nine hundred sixty-nine".