145837297 has 2 divisors, whose sum is σ = 145837298. Its totient is φ = 145837296.

The previous prime is 145837261. The next prime is 145837301. The reversal of 145837297 is 792738541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124344801 + 21492496 = 11151^2 + 4636^2 .

It is a cyclic number.

It is not a de Polignac number, because 145837297 - 2¹⁹ = 145313009 is a prime.

It is not a weakly prime, because it can be changed into another prime (145837997) 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 as a sum of consecutive naturals, namely, 72918648 + 72918649.

It is an arithmetic number, because the mean of its divisors is an integer number (72918649).

Almost surely, 2^145837297 is an apocalyptic number.

It is an amenable number.

145837297 is a deficient number, since it is larger than the sum of its proper divisors (1).

145837297 is an equidigital number, since it uses as much as digits as its factorization.

145837297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 145837297 is about 12076.3113987674. The cubic root of 145837297 is about 526.3680685127.

The spelling of 145837297 in words is "one hundred forty-five million, eight hundred thirty-seven thousand, two hundred ninety-seven".