1298475045 has 48 divisors (see below), whose sum is σ = 2723535360. Its totient is φ = 558669312.

The previous prime is 1298475019. The next prime is 1298475053. The reversal of 1298475045 is 5405748921.

1298475045 is a `hidden beast` number, since 12 + 98 + 47 + 504 + 5 = 666.

It is not a de Polignac number, because 1298475045 - 2⁶ = 1298474981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115885 + ... + 126594.

It is an arithmetic number, because the mean of its divisors is an integer number (56740320).

Almost surely, 2^1298475045 is an apocalyptic number.

1298475045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1298475045 is an abundant number, since it is smaller than the sum of its proper divisors (1425060315).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1298475045 is a wasteful number, since it uses less digits than its factorization.

1298475045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242514 (or 242511 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 1298475045 is about 36034.3592283809. The cubic root of 1298475045 is about 1090.9659660783.

The spelling of 1298475045 in words is "one billion, two hundred ninety-eight million, four hundred seventy-five thousand, forty-five".