1685142053 has 16 divisors (see below), whose sum is σ = 2028424320. Its totient is φ = 1367585856.

The previous prime is 1685142047. The next prime is 1685142079. The reversal of 1685142053 is 3502415861.

It is not a de Polignac number, because 1685142053 - 2⁸ = 1685141797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685142083) 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, 353675 + ... + 358407.

It is an arithmetic number, because the mean of its divisors is an integer number (126776520).

Almost surely, 2^1685142053 is an apocalyptic number.

It is an amenable number.

1685142053 is a deficient number, since it is larger than the sum of its proper divisors (343282267).

1685142053 is a wasteful number, since it uses less digits than its factorization.

1685142053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7436.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 1685142053 is about 41050.4817633119. The cubic root of 1685142053 is about 1189.9960108616.

The spelling of 1685142053 in words is "one billion, six hundred eighty-five million, one hundred forty-two thousand, fifty-three".