145965698 has 6 divisors (see below), whose sum is σ = 218974179. Its totient is φ = 72974306.

The previous prime is 145965679. The next prime is 145965713. The reversal of 145965698 is 896569541.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 72982849 + 72982849 = 8543^2 + 8543^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8543.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12815 + ... + 21357.

Almost surely, 2^145965698 is an apocalyptic number.

145965698 is a deficient number, since it is larger than the sum of its proper divisors (73008481).

145965698 is an frugal number, since it uses more digits than its factorization.

145965698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17088 (or 8545 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 53.

The square root of 145965698 is about 12081.6264633534. The cubic root of 145965698 is about 526.5225017116.

Multiplying 145965698 by its product of digits (2332800), we get a square (340508780294400 = 18452880²).

The spelling of 145965698 in words is "one hundred forty-five million, nine hundred sixty-five thousand, six hundred ninety-eight".