1525114849 has 4 divisors (see below), whose sum is σ = 1525388436. Its totient is φ = 1524841264.

The previous prime is 1525114823. The next prime is 1525114873. The reversal of 1525114849 is 9484115251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 672883600 + 852231249 = 25940^2 + 29193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525114849 - 2²¹ = 1523017697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1525114649) 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 3 ways as a sum of consecutive naturals, for example, 128254 + ... + 139639.

It is an arithmetic number, because the mean of its divisors is an integer number (381347109).

Almost surely, 2^1525114849 is an apocalyptic number.

It is an amenable number.

1525114849 is a deficient number, since it is larger than the sum of its proper divisors (273587).

1525114849 is an equidigital number, since it uses as much as digits as its factorization.

1525114849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273586.

The product of its digits is 57600, while the sum is 40.

The square root of 1525114849 is about 39052.7188426107. The cubic root of 1525114849 is about 1151.0676534804.

The spelling of 1525114849 in words is "one billion, five hundred twenty-five million, one hundred fourteen thousand, eight hundred forty-nine".