1003198945 has 16 divisors (see below), whose sum is σ = 1413001728. Its totient is φ = 669314880.

The previous prime is 1003198927. The next prime is 1003198949. The reversal of 1003198945 is 5498913001.

It is not a de Polignac number, because 1003198945 - 2⁷ = 1003198817 is a prime.

It is a super-2 number, since 2×1003198945² = 2012816246498226050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003198898 and 1003198907.

It is not an unprimeable number, because it can be changed into a prime (1003198949) 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, 386041 + ... + 388630.

It is an arithmetic number, because the mean of its divisors is an integer number (88312608).

Almost surely, 2^1003198945 is an apocalyptic number.

It is an amenable number.

1003198945 is a deficient number, since it is larger than the sum of its proper divisors (409802783).

1003198945 is an equidigital number, since it uses as much as digits as its factorization.

1003198945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774720.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1003198945 is about 31673.3159773333. The cubic root of 1003198945 is about 1001.0651799887.

The spelling of 1003198945 in words is "one billion, three million, one hundred ninety-eight thousand, nine hundred forty-five".