1298864119 has 24 divisors (see below), whose sum is σ = 1591498368. Its totient is φ = 1054856880.

The previous prime is 1298864117. The next prime is 1298864123. The reversal of 1298864119 is 9114688921.

It is not a de Polignac number, because 1298864119 - 2¹ = 1298864117 is a prime.

It is a super-2 number, since 2×1298864119² = 3374095999251292322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298864117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115204 + ... + 125974.

It is an arithmetic number, because the mean of its divisors is an integer number (66312432).

Almost surely, 2^1298864119 is an apocalyptic number.

1298864119 is a deficient number, since it is larger than the sum of its proper divisors (292634249).

1298864119 is a wasteful number, since it uses less digits than its factorization.

1298864119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10915 (or 10908 counting only the distinct ones).

The product of its digits is 248832, while the sum is 49.

The square root of 1298864119 is about 36039.7574769864. The cubic root of 1298864119 is about 1091.0749205798.

The spelling of 1298864119 in words is "one billion, two hundred ninety-eight million, eight hundred sixty-four thousand, one hundred nineteen".