1682755481 has 4 divisors (see below), whose sum is σ = 1835733264. Its totient is φ = 1529777700.

The previous prime is 1682755471. The next prime is 1682755493. The reversal of 1682755481 is 1845572861.

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 a de Polignac number, because none of the positive numbers 2^k-1682755481 is a prime.

It is a super-2 number, since 2×1682755481² = 5663332017671082722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1682755411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76488875 + ... + 76488896.

It is an arithmetic number, because the mean of its divisors is an integer number (458933316).

Almost surely, 2^1682755481 is an apocalyptic number.

1682755481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1682755481 is a deficient number, since it is larger than the sum of its proper divisors (152977783).

1682755481 is a wasteful number, since it uses less digits than its factorization.

1682755481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152977782.

The product of its digits is 537600, while the sum is 47.

The square root of 1682755481 is about 41021.4027185809. The cubic root of 1682755481 is about 1189.4339706216.

The spelling of 1682755481 in words is "one billion, six hundred eighty-two million, seven hundred fifty-five thousand, four hundred eighty-one".