1298629045 has 16 divisors (see below), whose sum is σ = 1793796480. Its totient is φ = 884078784.

The previous prime is 1298629027. The next prime is 1298629049. The reversal of 1298629045 is 5409268921.

It is a cyclic number.

It is not a de Polignac number, because 1298629045 - 2⁷ = 1298628917 is a prime.

It is a super-2 number, since 2×1298629045² = 3372874793035224050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1298628986 and 1298629004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298629049) 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, 128602 + ... + 138331.

It is an arithmetic number, because the mean of its divisors is an integer number (112112280).

Almost surely, 2^1298629045 is an apocalyptic number.

It is an amenable number.

1298629045 is a deficient number, since it is larger than the sum of its proper divisors (495167435).

1298629045 is a wasteful number, since it uses less digits than its factorization.

1298629045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267084.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 1298629045 is about 36036.4960144573. The cubic root of 1298629045 is about 1091.0090941353.

The spelling of 1298629045 in words is "one billion, two hundred ninety-eight million, six hundred twenty-nine thousand, forty-five".