3155247020 has 24 divisors (see below), whose sum is σ = 6684660864. Its totient is φ = 1250928896.

The previous prime is 3155246999. The next prime is 3155247049. The reversal of 3155247020 is 207425513.

3155247020 = 8862² + 8863² + ... + 8901².

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 695804 + ... + 700323.

It is an arithmetic number, because the mean of its divisors is an integer number (278527536).

Almost surely, 2^3155247020 is an apocalyptic number.

It is an amenable number.

3155247020 is an abundant number, since it is smaller than the sum of its proper divisors (3529413844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3155247020 is a wasteful number, since it uses less digits than its factorization.

3155247020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396249 (or 1396247 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 3155247020 is about 56171.5855215072. The cubic root of 3155247020 is about 1466.7106824486.

The spelling of 3155247020 in words is "three billion, one hundred fifty-five million, two hundred forty-seven thousand, twenty".