145150297 has 4 divisors (see below), whose sum is σ = 149073316. Its totient is φ = 141227280.

The previous prime is 145150289. The next prime is 145150303. The reversal of 145150297 is 792051541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49970761 + 95179536 = 7069^2 + 9756^2 .

It is a cyclic number.

It is not a de Polignac number, because 145150297 - 2³ = 145150289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145150237) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1961454 + ... + 1961527.

It is an arithmetic number, because the mean of its divisors is an integer number (37268329).

Almost surely, 2^145150297 is an apocalyptic number.

It is an amenable number.

145150297 is a deficient number, since it is larger than the sum of its proper divisors (3923019).

145150297 is an equidigital number, since it uses as much as digits as its factorization.

145150297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923018.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 145150297 is about 12047.8337056917. The cubic root of 145150297 is about 525.5402414652.

The spelling of 145150297 in words is "one hundred forty-five million, one hundred fifty thousand, two hundred ninety-seven".