145969823 has 8 divisors (see below), whose sum is σ = 148346496. Its totient is φ = 143602200.

The previous prime is 145969819. The next prime is 145969841. The reversal of 145969823 is 328969541.

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 145969823 - 2² = 145969819 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145969843) 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, 35168 + ... + 39098.

It is an arithmetic number, because the mean of its divisors is an integer number (18543312).

Almost surely, 2^145969823 is an apocalyptic number.

145969823 is a deficient number, since it is larger than the sum of its proper divisors (2376673).

145969823 is an equidigital number, since it uses as much as digits as its factorization.

145969823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525.

The product of its digits is 466560, while the sum is 47.

The square root of 145969823 is about 12081.7971759172. The cubic root of 145969823 is about 526.5274615181.

The spelling of 145969823 in words is "one hundred forty-five million, nine hundred sixty-nine thousand, eight hundred twenty-three".