1681152733 has 8 divisors (see below), whose sum is σ = 1814196608. Its totient is φ = 1548640944.

The previous prime is 1681152719. The next prime is 1681152743. The reversal of 1681152733 is 3372511861.

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 1681152733 - 2⁵ = 1681152701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1681152692 and 1681152701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681152743) 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, 126441 + ... + 139102.

It is an arithmetic number, because the mean of its divisors is an integer number (226774576).

Almost surely, 2^1681152733 is an apocalyptic number.

1681152733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1681152733 is a deficient number, since it is larger than the sum of its proper divisors (133043875).

1681152733 is a wasteful number, since it uses less digits than its factorization.

1681152733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266043.

The product of its digits is 30240, while the sum is 37.

The square root of 1681152733 is about 41001.8625552547. The cubic root of 1681152733 is about 1189.0562234284.

The spelling of 1681152733 in words is "one billion, six hundred eighty-one million, one hundred fifty-two thousand, seven hundred thirty-three".