145669696 has 14 divisors (see below), whose sum is σ = 289063430. Its totient is φ = 72834816.

The previous prime is 145669673. The next prime is 145669709. The reversal of 145669696 is 696966541.

It can be written as a sum of positive squares in only one way, i.e., 145540096 + 129600 = 12064^2 + 360^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1137981 + ... + 1138108.

Almost surely, 2^145669696 is an apocalyptic number.

145669696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145669696 is a deficient number, since it is larger than the sum of its proper divisors (143393734).

145669696 is an equidigital number, since it uses as much as digits as its factorization.

145669696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276101 (or 2276091 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 52.

The square root of 145669696 is about 12069.3701575517. The cubic root of 145669696 is about 526.1663514095.

The spelling of 145669696 in words is "one hundred forty-five million, six hundred sixty-nine thousand, six hundred ninety-six".