15240245145 has 32 divisors (see below), whose sum is σ = 24945338880. Its totient is φ = 7941734400.

The previous prime is 15240245131. The next prime is 15240245161. The reversal of 15240245145 is 54154204251.

It is a happy number.

It is not a de Polignac number, because 15240245145 - 2⁶ = 15240245081 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405721 + ... + 441689.

It is an arithmetic number, because the mean of its divisors is an integer number (779541840).

Almost surely, 2^15240245145 is an apocalyptic number.

15240245145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15240245145 is a deficient number, since it is larger than the sum of its proper divisors (9705093735).

15240245145 is a wasteful number, since it uses less digits than its factorization.

15240245145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36625.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 15240245145 its reverse (54154204251), we get a palindrome (69394449396).

The spelling of 15240245145 in words is "fifteen billion, two hundred forty million, two hundred forty-five thousand, one hundred forty-five".