3120975 has 72 divisors (see below), whose sum is σ = 6634992. Its totient is φ = 1382400.

The previous prime is 3120973. The next prime is 3120977. The reversal of 3120975 is 5790213.

It is an interprime number because it is at equal distance from previous prime (3120973) and next prime (3120977).

It is not a de Polignac number, because 3120975 - 2¹ = 3120973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120973) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 32127 + ... + 32223.

Almost surely, 2^3120975 is an apocalyptic number.

3120975 is an abundant number, since it is smaller than the sum of its proper divisors (3514017).

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

3120975 is a wasteful number, since it uses less digits than its factorization.

3120975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 3120975 is about 1766.6281442341. The cubic root of 3120975 is about 146.1380910284.

It can be divided in two parts, 3120 and 975, that added together give a triangular number (4095 = T₉₀).

The spelling of 3120975 in words is "three million, one hundred twenty thousand, nine hundred seventy-five".