145515107 has 2 divisors, whose sum is σ = 145515108. Its totient is φ = 145515106.

The previous prime is 145515101. The next prime is 145515137. The reversal of 145515107 is 701515541.

It is a weak prime.

It is an emirp because it is prime and its reverse (701515541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145515107 - 2¹⁶ = 145449571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145515107.

It is not a weakly prime, because it can be changed into another prime (145515101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72757553 + 72757554.

It is an arithmetic number, because the mean of its divisors is an integer number (72757554).

Almost surely, 2^145515107 is an apocalyptic number.

145515107 is a deficient number, since it is larger than the sum of its proper divisors (1).

145515107 is an equidigital number, since it uses as much as digits as its factorization.

145515107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 145515107 is about 12062.9642708581. The cubic root of 145515107 is about 525.9801577522.

The spelling of 145515107 in words is "one hundred forty-five million, five hundred fifteen thousand, one hundred seven".