1098157403 has 16 divisors (see below), whose sum is σ = 1297831680. Its totient is φ = 909713376.

The previous prime is 1098157387. The next prime is 1098157429. The reversal of 1098157403 is 3047518901.

It is a cyclic number.

It is not a de Polignac number, because 1098157403 - 2⁴ = 1098157387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1098157603) 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, 2768 + ... + 46946.

It is an arithmetic number, because the mean of its divisors is an integer number (81114480).

Almost surely, 2^1098157403 is an apocalyptic number.

1098157403 is a deficient number, since it is larger than the sum of its proper divisors (199674277).

1098157403 is an equidigital number, since it uses as much as digits as its factorization.

1098157403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44306.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1098157403 is about 33138.4580661201. The cubic root of 1098157403 is about 1031.7034065831.

The spelling of 1098157403 in words is "one billion, ninety-eight million, one hundred fifty-seven thousand, four hundred three".