3251361387 has 4 divisors (see below), whose sum is σ = 4335148520. Its totient is φ = 2167574256.

The previous prime is 3251361383. The next prime is 3251361389. The reversal of 3251361387 is 7831631523.

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

It is not a de Polignac number, because 3251361387 - 2² = 3251361383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3251361383) 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, 541893562 + ... + 541893567.

It is an arithmetic number, because the mean of its divisors is an integer number (1083787130).

Almost surely, 2^3251361387 is an apocalyptic number.

3251361387 is a deficient number, since it is larger than the sum of its proper divisors (1083787133).

3251361387 is a wasteful number, since it uses less digits than its factorization.

3251361387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083787132.

The product of its digits is 90720, while the sum is 39.

The square root of 3251361387 is about 57020.7101586783. The cubic root of 3251361387 is about 1481.4548311589.

The spelling of 3251361387 in words is "three billion, two hundred fifty-one million, three hundred sixty-one thousand, three hundred eighty-seven".