145997336 has 8 divisors (see below), whose sum is σ = 273745020. Its totient is φ = 72998664.

The previous prime is 145997303. The next prime is 145997393. The reversal of 145997336 is 633799541.

145997336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9124826 + ... + 9124841.

Almost surely, 2^145997336 is an apocalyptic number.

It is an amenable number.

145997336 is a deficient number, since it is larger than the sum of its proper divisors (127747684).

145997336 is a wasteful number, since it uses less digits than its factorization.

145997336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18249673 (or 18249669 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The square root of 145997336 is about 12082.9357359873. The cubic root of 145997336 is about 526.5605401360.

The spelling of 145997336 in words is "one hundred forty-five million, nine hundred ninety-seven thousand, three hundred thirty-six".