3212561143 has 4 divisors (see below), whose sum is σ = 3504612168. Its totient is φ = 2920510120.

The previous prime is 3212561129. The next prime is 3212561147. The reversal of 3212561143 is 3411652123.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3212561143 - 2¹⁷ = 3212430071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212561147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146025496 + ... + 146025517.

It is an arithmetic number, because the mean of its divisors is an integer number (876153042).

Almost surely, 2^3212561143 is an apocalyptic number.

3212561143 is a deficient number, since it is larger than the sum of its proper divisors (292051025).

3212561143 is a wasteful number, since it uses less digits than its factorization.

3212561143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292051024.

The product of its digits is 4320, while the sum is 28.

The square root of 3212561143 is about 56679.4596216301. The cubic root of 3212561143 is about 1475.5382339849.

The spelling of 3212561143 in words is "three billion, two hundred twelve million, five hundred sixty-one thousand, one hundred forty-three".