145936297 has 8 divisors (see below), whose sum is σ = 157427144. Its totient is φ = 134483328.

The previous prime is 145936289. The next prime is 145936303. The reversal of 145936297 is 792639541.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12787776 + 133148521 = 3576^2 + 11539^2 .

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 145936297 - 2³ = 145936289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145936247) 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, 1188 + ... + 17125.

It is an arithmetic number, because the mean of its divisors is an integer number (19678393).

Almost surely, 2^145936297 is an apocalyptic number.

It is an amenable number.

145936297 is a deficient number, since it is larger than the sum of its proper divisors (11490847).

145936297 is a wasteful number, since it uses less digits than its factorization.

145936297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18939.

The product of its digits is 408240, while the sum is 46.

The square root of 145936297 is about 12080.4096370943. The cubic root of 145936297 is about 526.4871479087.

The spelling of 145936297 in words is "one hundred forty-five million, nine hundred thirty-six thousand, two hundred ninety-seven".