1640475103 has 8 divisors (see below), whose sum is σ = 1705842000. Its totient is φ = 1575694848.

The previous prime is 1640475097. The next prime is 1640475107. The reversal of 1640475103 is 3015740461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1640475103 - 2⁵ = 1640475071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640475107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140953 + ... + 152146.

It is an arithmetic number, because the mean of its divisors is an integer number (213230250).

Almost surely, 2^1640475103 is an apocalyptic number.

1640475103 is a deficient number, since it is larger than the sum of its proper divisors (65366897).

1640475103 is a wasteful number, since it uses less digits than its factorization.

1640475103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293321.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 1640475103 is about 40502.7789540422. The cubic root of 1640475103 is about 1179.3875743318.

The spelling of 1640475103 in words is "one billion, six hundred forty million, four hundred seventy-five thousand, one hundred three".