1672135403 has 4 divisors (see below), whose sum is σ = 1707712800. Its totient is φ = 1636558008.

The previous prime is 1672135369. The next prime is 1672135417. The reversal of 1672135403 is 3045312761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1672135403 - 2¹⁴ = 1672119019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1672135403.

It is not an unprimeable number, because it can be changed into a prime (1672435403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17788628 + ... + 17788721.

It is an arithmetic number, because the mean of its divisors is an integer number (426928200).

Almost surely, 2^1672135403 is an apocalyptic number.

1672135403 is a deficient number, since it is larger than the sum of its proper divisors (35577397).

1672135403 is an equidigital number, since it uses as much as digits as its factorization.

1672135403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35577396.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1672135403 is about 40891.7522613057. The cubic root of 1672135403 is about 1186.9264665027.

The spelling of 1672135403 in words is "one billion, six hundred seventy-two million, one hundred thirty-five thousand, four hundred three".