15245450145 has 24 divisors (see below), whose sum is σ = 27979886376. Its totient is φ = 7652617728.

The previous prime is 15245450131. The next prime is 15245450153. The reversal of 15245450145 is 54105454251.

15245450145 is a `hidden beast` number, since 15 + 2 + 454 + 50 + 145 = 666.

15245450145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2132222976 + 13113227169 = 46176^2 + 114513^2 .

It is not a de Polignac number, because 15245450145 - 2¹⁴ = 15245433761 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9963582 + ... + 9965111.

It is an arithmetic number, because the mean of its divisors is an integer number (1165828599).

Almost surely, 2^15245450145 is an apocalyptic number.

15245450145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15245450145 is a deficient number, since it is larger than the sum of its proper divisors (12734436231).

15245450145 is a wasteful number, since it uses less digits than its factorization.

15245450145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19928721 (or 19928718 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 15245450145 in words is "fifteen billion, two hundred forty-five million, four hundred fifty thousand, one hundred forty-five".