1900669053 has 4 divisors (see below), whose sum is σ = 2534225408. Its totient is φ = 1267112700.

The previous prime is 1900669051. The next prime is 1900669063. The reversal of 1900669053 is 3509660091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1900669053 - 2¹ = 1900669051 is a prime.

It is a super-2 number, since 2×1900669053² = 7225085698063833618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900669051) 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, 316778173 + ... + 316778178.

It is an arithmetic number, because the mean of its divisors is an integer number (633556352).

Almost surely, 2^1900669053 is an apocalyptic number.

It is an amenable number.

1900669053 is a deficient number, since it is larger than the sum of its proper divisors (633556355).

1900669053 is an equidigital number, since it uses as much as digits as its factorization.

1900669053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633556354.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 1900669053 is about 43596.6633241582. The cubic root of 1900669053 is about 1238.7076921906.

The spelling of 1900669053 in words is "one billion, nine hundred million, six hundred sixty-nine thousand, fifty-three".