1198531245 has 16 divisors (see below), whose sum is σ = 1920402432. Its totient is φ = 638299200.

The previous prime is 1198531231. The next prime is 1198531247. The reversal of 1198531245 is 5421358911.

It is not a de Polignac number, because 1198531245 - 2⁶ = 1198531181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198531247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46477 + ... + 67506.

It is an arithmetic number, because the mean of its divisors is an integer number (120025152).

Almost surely, 2^1198531245 is an apocalyptic number.

1198531245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1198531245 is a deficient number, since it is larger than the sum of its proper divisors (721871187).

1198531245 is a wasteful number, since it uses less digits than its factorization.

1198531245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114692.

The product of its digits is 43200, while the sum is 39.

The square root of 1198531245 is about 34619.8100081442. The cubic root of 1198531245 is about 1062.2248407657.

The spelling of 1198531245 in words is "one billion, one hundred ninety-eight million, five hundred thirty-one thousand, two hundred forty-five".