145983967 has 8 divisors (see below), whose sum is σ = 152930016. Its totient is φ = 139087872.

The previous prime is 145983953. The next prime is 145983979. The reversal of 145983967 is 769389541.

It is a happy number.

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 145983967 - 2²⁷ = 11766239 is a prime.

It is a super-3 number, since 3×145983967³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145983997) 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, 6438 + ... + 18259.

It is an arithmetic number, because the mean of its divisors is an integer number (19116252).

Almost surely, 2^145983967 is an apocalyptic number.

145983967 is a deficient number, since it is larger than the sum of its proper divisors (6946049).

145983967 is a wasteful number, since it uses less digits than its factorization.

145983967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24977.

The product of its digits is 1632960, while the sum is 52.

The square root of 145983967 is about 12082.3825051188. The cubic root of 145983967 is about 526.5444672337.

The spelling of 145983967 in words is "one hundred forty-five million, nine hundred eighty-three thousand, nine hundred sixty-seven".