965149221 has 8 divisors (see below), whose sum is σ = 1304990784. Its totient is φ = 634370240.

The previous prime is 965149219. The next prime is 965149223. The reversal of 965149221 is 122941569.

It is an interprime number because it is at equal distance from previous prime (965149219) and next prime (965149223).

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

It is a cyclic number.

It is not a de Polignac number, because 965149221 - 2¹ = 965149219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 965149221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965149223) 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, 2265396 + ... + 2265821.

It is an arithmetic number, because the mean of its divisors is an integer number (163123848).

Almost surely, 2^965149221 is an apocalyptic number.

It is an amenable number.

965149221 is a deficient number, since it is larger than the sum of its proper divisors (339841563).

965149221 is a wasteful number, since it uses less digits than its factorization.

965149221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531291.

The product of its digits is 38880, while the sum is 39.

The square root of 965149221 is about 31066.8508381522. The cubic root of 965149221 is about 988.2454454888.

The spelling of 965149221 in words is "nine hundred sixty-five million, one hundred forty-nine thousand, two hundred twenty-one".