1639322053 has 8 divisors (see below), whose sum is σ = 1760201280. Its totient is φ = 1521159360.

The previous prime is 1639322051. The next prime is 1639322099. The reversal of 1639322053 is 3502239361.

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 1639322053 - 2¹ = 1639322051 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 (1639322051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677883 + ... + 680296.

It is an arithmetic number, because the mean of its divisors is an integer number (220025160).

Almost surely, 2^1639322053 is an apocalyptic number.

It is an amenable number.

1639322053 is a deficient number, since it is larger than the sum of its proper divisors (120879227).

1639322053 is a wasteful number, since it uses less digits than its factorization.

1639322053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358267.

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 1639322053 is about 40488.5422434545. The cubic root of 1639322053 is about 1179.1111886318. Note that the first 4 decimals are identical.

The spelling of 1639322053 in words is "one billion, six hundred thirty-nine million, three hundred twenty-two thousand, fifty-three".