3251361381 has 16 divisors (see below), whose sum is σ = 4412116800. Its totient is φ = 2129328000.

The previous prime is 3251361349. The next prime is 3251361383. The reversal of 3251361381 is 1831631523.

It is not a de Polignac number, because 3251361381 - 2⁵ = 3251361349 is a prime.

It is a super-2 number, since 2×3251361381² = 21142701659716454322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3251361383) 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 15 ways as a sum of consecutive naturals, for example, 25395 + ... + 84543.

It is an arithmetic number, because the mean of its divisors is an integer number (275757300).

Almost surely, 2^3251361381 is an apocalyptic number.

It is an amenable number.

3251361381 is a deficient number, since it is larger than the sum of its proper divisors (1160755419).

3251361381 is a wasteful number, since it uses less digits than its factorization.

3251361381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59476.

The product of its digits is 12960, while the sum is 33.

The square root of 3251361381 is about 57020.7101060658. The cubic root of 3251361381 is about 1481.4548302476.

The spelling of 3251361381 in words is "three billion, two hundred fifty-one million, three hundred sixty-one thousand, three hundred eighty-one".