145153549 has 2 divisors, whose sum is σ = 145153550. Its totient is φ = 145153548.

The previous prime is 145153523. The next prime is 145153583. The reversal of 145153549 is 945351541.

145153549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83137924 + 62015625 = 9118^2 + 7875^2 .

It is a cyclic number.

It is not a de Polignac number, because 145153549 - 2⁵ = 145153517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145150549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72576774 + 72576775.

It is an arithmetic number, because the mean of its divisors is an integer number (72576775).

Almost surely, 2^145153549 is an apocalyptic number.

It is an amenable number.

145153549 is a deficient number, since it is larger than the sum of its proper divisors (1).

145153549 is an equidigital number, since it uses as much as digits as its factorization.

145153549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 37.

The square root of 145153549 is about 12047.9686669579. The cubic root of 145153549 is about 525.5441662340.

The spelling of 145153549 in words is "one hundred forty-five million, one hundred fifty-three thousand, five hundred forty-nine".