3157301381 has 8 divisors (see below), whose sum is σ = 3419827320. Its totient is φ = 2897583552.

The previous prime is 3157301377. The next prime is 3157301393. The reversal of 3157301381 is 1831037513.

It can be written as a sum of positive squares in 4 ways, for example, as 1222621156 + 1934680225 = 34966^2 + 43985^2 .

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 3157301381 - 2² = 3157301377 is a prime.

It is a super-2 number, since 2×3157301381² = 19937104020929014322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157301321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699686 + ... + 704183.

It is an arithmetic number, because the mean of its divisors is an integer number (427478415).

Almost surely, 2^3157301381 is an apocalyptic number.

It is an amenable number.

3157301381 is a deficient number, since it is larger than the sum of its proper divisors (262525939).

3157301381 is a wasteful number, since it uses less digits than its factorization.

3157301381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404055.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 3157301381 is about 56189.8690245848. The cubic root of 3157301381 is about 1467.0289353453.

Adding to 3157301381 its reverse (1831037513), we get a palindrome (4988338894).

The spelling of 3157301381 in words is "three billion, one hundred fifty-seven million, three hundred one thousand, three hundred eighty-one".