153321969 has 8 divisors (see below), whose sum is σ = 209954560. Its totient is φ = 99452016.

The previous prime is 153321947. The next prime is 153322009. The reversal of 153321969 is 969123351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 153321969 - 2⁵ = 153321937 is a prime.

It is a super-2 number, since 2×153321969² = 47015252356073922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153321269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690529 + ... + 690750.

It is an arithmetic number, because the mean of its divisors is an integer number (26244320).

Almost surely, 2^153321969 is an apocalyptic number.

It is an amenable number.

153321969 is a deficient number, since it is larger than the sum of its proper divisors (56632591).

153321969 is a wasteful number, since it uses less digits than its factorization.

153321969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381319.

The product of its digits is 43740, while the sum is 39.

The square root of 153321969 is about 12382.3248624804. The cubic root of 153321969 is about 535.2230344999.

It can be divided in two parts, 153321 and 969, that added together give a triangular number (154290 = T₅₅₅).

The spelling of 153321969 in words is "one hundred fifty-three million, three hundred twenty-one thousand, nine hundred sixty-nine".