145376665 has 16 divisors (see below), whose sum is σ = 199646208. Its totient is φ = 99550656.

The previous prime is 145376617. The next prime is 145376683. The reversal of 145376665 is 566673541.

It is a cyclic number.

It is not a de Polignac number, because 145376665 - 2¹⁷ = 145245593 is a prime.

It is a super-2 number, since 2×145376665² = 42268749453044450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27799 + ... + 32611.

It is an arithmetic number, because the mean of its divisors is an integer number (12477888).

Almost surely, 2^145376665 is an apocalyptic number.

It is an amenable number.

145376665 is a deficient number, since it is larger than the sum of its proper divisors (54269543).

145376665 is an equidigital number, since it uses as much as digits as its factorization.

145376665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5688.

The product of its digits is 453600, while the sum is 43.

The square root of 145376665 is about 12057.2245977256. The cubic root of 145376665 is about 525.8133002772.

The spelling of 145376665 in words is "one hundred forty-five million, three hundred seventy-six thousand, six hundred sixty-five".