3151223420 has 12 divisors (see below), whose sum is σ = 6617569224. Its totient is φ = 1260489360.

The previous prime is 3151223407. The next prime is 3151223443. The reversal of 3151223420 is 243221513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78780566 + ... + 78780605.

It is an arithmetic number, because the mean of its divisors is an integer number (551464102).

Almost surely, 2^3151223420 is an apocalyptic number.

It is an amenable number.

3151223420 is an abundant number, since it is smaller than the sum of its proper divisors (3466345804).

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

3151223420 is a wasteful number, since it uses less digits than its factorization.

3151223420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157561180 (or 157561178 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 3151223420 is about 56135.7588351667. The cubic root of 3151223420 is about 1466.0869629348.

Adding to 3151223420 its reverse (243221513), we get a palindrome (3394444933).

The spelling of 3151223420 in words is "three billion, one hundred fifty-one million, two hundred twenty-three thousand, four hundred twenty".