3781131002 has 32 divisors (see below), whose sum is σ = 6269866560. Its totient is φ = 1695844480.

The previous prime is 3781130999. The next prime is 3781131019. The reversal of 3781131002 is 2001311873.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088873 + ... + 1092339.

It is an arithmetic number, because the mean of its divisors is an integer number (195933330).

Almost surely, 2^3781131002 is an apocalyptic number.

3781131002 is a deficient number, since it is larger than the sum of its proper divisors (2488735558).

3781131002 is a wasteful number, since it uses less digits than its factorization.

3781131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 3781131002 is about 61490.9017822962. The cubic root of 3781131002 is about 1557.9035780578.

Adding to 3781131002 its reverse (2001311873), we get a palindrome (5782442875).

The spelling of 3781131002 in words is "three billion, seven hundred eighty-one million, one hundred thirty-one thousand, two".