145816069 has 8 divisors (see below), whose sum is σ = 168205248. Its totient is φ = 123816480.

The previous prime is 145816063. The next prime is 145816093. The reversal of 145816069 is 960618541.

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 145816069 - 2⁷ = 145815941 is a prime.

It is a super-2 number, since 2×145816069² = 42524651957225522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145816063) 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, 96592 + ... + 98089.

It is an arithmetic number, because the mean of its divisors is an integer number (21025656).

Almost surely, 2^145816069 is an apocalyptic number.

It is an amenable number.

145816069 is a deficient number, since it is larger than the sum of its proper divisors (22389179).

145816069 is a wasteful number, since it uses less digits than its factorization.

145816069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194795.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 145816069 is about 12075.4324560241. The cubic root of 145816069 is about 526.3425279874.

The spelling of 145816069 in words is "one hundred forty-five million, eight hundred sixteen thousand, sixty-nine".