3213124145 has 24 divisors (see below), whose sum is σ = 4843591872. Its totient is φ = 2002983840.

The previous prime is 3213124133. The next prime is 3213124147. The reversal of 3213124145 is 5414213123.

It is a happy number.

It is not a de Polignac number, because 3213124145 - 2¹² = 3213120049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3213124147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375119 + ... + 383588.

It is an arithmetic number, because the mean of its divisors is an integer number (201816328).

Almost surely, 2^3213124145 is an apocalyptic number.

3213124145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3213124145 is a deficient number, since it is larger than the sum of its proper divisors (1630467727).

3213124145 is a wasteful number, since it uses less digits than its factorization.

3213124145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758741 (or 758730 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 3213124145 is about 56684.4259475211. The cubic root of 3213124145 is about 1475.6244250762.

Adding to 3213124145 its reverse (5414213123), we get a palindrome (8627337268).

The spelling of 3213124145 in words is "three billion, two hundred thirteen million, one hundred twenty-four thousand, one hundred forty-five".