152969797 has 4 divisors (see below), whose sum is σ = 153815116. Its totient is φ = 152124480.

The previous prime is 152969771. The next prime is 152969813. The reversal of 152969797 is 797969251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 797969251 = 5639 ⋅141509.

It can be written as a sum of positive squares in 2 ways, for example, as 80532676 + 72437121 = 8974^2 + 8511^2 .

It is a cyclic number.

It is not a de Polignac number, because 152969797 - 2⁷ = 152969669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152969767) 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 in 3 ways as a sum of consecutive naturals, for example, 422388 + ... + 422749.

It is an arithmetic number, because the mean of its divisors is an integer number (38453779).

Almost surely, 2^152969797 is an apocalyptic number.

It is an amenable number.

152969797 is a deficient number, since it is larger than the sum of its proper divisors (845319).

152969797 is an equidigital number, since it uses as much as digits as its factorization.

152969797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845318.

The product of its digits is 2143260, while the sum is 55.

The square root of 152969797 is about 12368.0959326810. The cubic root of 152969797 is about 534.8129278691.

The spelling of 152969797 in words is "one hundred fifty-two million, nine hundred sixty-nine thousand, seven hundred ninety-seven".