15145225450 has 12 divisors (see below), whose sum is σ = 28170119430. Its totient is φ = 6058090160.

The previous prime is 15145225439. The next prime is 15145225453. The reversal of 15145225450 is 5452254151.

It can be written as a sum of positive squares in 3 ways, for example, as 10737726129 + 4407499321 = 103623^2 + 66389^2 .

It is not an unprimeable number, because it can be changed into a prime (15145225453) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 151452205 + ... + 151452304.

Almost surely, 2^15145225450 is an apocalyptic number.

15145225450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15145225450 is a deficient number, since it is larger than the sum of its proper divisors (13024893980).

15145225450 is a wasteful number, since it uses less digits than its factorization.

15145225450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302904521 (or 302904516 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 15145225450 in words is "fifteen billion, one hundred forty-five million, two hundred twenty-five thousand, four hundred fifty".