145255637 has 2 divisors, whose sum is σ = 145255638. Its totient is φ = 145255636.

The previous prime is 145255631. The next prime is 145255681. The reversal of 145255637 is 736552541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116942596 + 28313041 = 10814^2 + 5321^2 .

It is a cyclic number.

It is not a de Polignac number, because 145255637 - 2⁶ = 145255573 is a prime.

It is a super-3 number, since 3×145255637³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145255637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145255631) 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, 72627818 + 72627819.

It is an arithmetic number, because the mean of its divisors is an integer number (72627819).

Almost surely, 2^145255637 is an apocalyptic number.

It is an amenable number.

145255637 is a deficient number, since it is larger than the sum of its proper divisors (1).

145255637 is an equidigital number, since it uses as much as digits as its factorization.

145255637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 38.

The square root of 145255637 is about 12052.2046530915. The cubic root of 145255637 is about 525.6673442529.

The spelling of 145255637 in words is "one hundred forty-five million, two hundred fifty-five thousand, six hundred thirty-seven".