145052507 has 2 divisors, whose sum is σ = 145052508. Its totient is φ = 145052506.

The previous prime is 145052497. The next prime is 145052561. The reversal of 145052507 is 705250541.

145052507 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 is a cyclic number.

It is not a de Polignac number, because 145052507 - 2⁶ = 145052443 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 145052507.

It is not a weakly prime, because it can be changed into another prime (145052597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72526253 + 72526254.

It is an arithmetic number, because the mean of its divisors is an integer number (72526254).

Almost surely, 2^145052507 is an apocalyptic number.

145052507 is a deficient number, since it is larger than the sum of its proper divisors (1).

145052507 is an equidigital number, since it uses as much as digits as its factorization.

145052507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 145052507 is about 12043.7746159582. The cubic root of 145052507 is about 525.4221934213.

The spelling of 145052507 in words is "one hundred forty-five million, fifty-two thousand, five hundred seven".