145034557 has 2 divisors, whose sum is σ = 145034558. Its totient is φ = 145034556.

The previous prime is 145034537. The next prime is 145034563. The reversal of 145034557 is 755430541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109286116 + 35748441 = 10454^2 + 5979^2 .

It is a cyclic number.

It is not a de Polignac number, because 145034557 - 2¹⁹ = 144510269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145034537) 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, 72517278 + 72517279.

It is an arithmetic number, because the mean of its divisors is an integer number (72517279).

Almost surely, 2^145034557 is an apocalyptic number.

It is an amenable number.

145034557 is a deficient number, since it is larger than the sum of its proper divisors (1).

145034557 is an equidigital number, since it uses as much as digits as its factorization.

145034557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 145034557 is about 12043.0293946332. The cubic root of 145034557 is about 525.4005191609.

The spelling of 145034557 in words is "one hundred forty-five million, thirty-four thousand, five hundred fifty-seven".