3131603398 has 32 divisors (see below), whose sum is σ = 5992715520. Its totient is φ = 1191728160.

The previous prime is 3131603393. The next prime is 3131603413. The reversal of 3131603398 is 8933061313.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131603393) 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, 229833 + ... + 243076.

It is an arithmetic number, because the mean of its divisors is an integer number (187272360).

Almost surely, 2^3131603398 is an apocalyptic number.

3131603398 is a deficient number, since it is larger than the sum of its proper divisors (2861112122).

3131603398 is a wasteful number, since it uses less digits than its factorization.

3131603398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472972.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 3131603398 is about 55960.7308565569. The cubic root of 3131603398 is about 1463.0379287693.

The spelling of 3131603398 in words is "three billion, one hundred thirty-one million, six hundred three thousand, three hundred ninety-eight".