3145757121 has 32 divisors (see below), whose sum is σ = 5022272640. Its totient is φ = 1934539200.

The previous prime is 3145757117. The next prime is 3145757143. The reversal of 3145757121 is 1217575413.

3145757121 is a `hidden beast` number, since 3 + 14 + 57 + 571 + 21 = 666.

It is not a de Polignac number, because 3145757121 - 2² = 3145757117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3145757161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 886611 + ... + 890151.

It is an arithmetic number, because the mean of its divisors is an integer number (156946020).

Almost surely, 2^3145757121 is an apocalyptic number.

It is an amenable number.

3145757121 is a deficient number, since it is larger than the sum of its proper divisors (1876515519).

3145757121 is a wasteful number, since it uses less digits than its factorization.

3145757121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094 (or 6088 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The square root of 3145757121 is about 56087.0494945134. The cubic root of 3145757121 is about 1465.2387518334.

The spelling of 3145757121 in words is "three billion, one hundred forty-five million, seven hundred fifty-seven thousand, one hundred twenty-one".