3145861347 has 4 divisors (see below), whose sum is σ = 4194481800. Its totient is φ = 2097240896.

The previous prime is 3145861319. The next prime is 3145861351. The reversal of 3145861347 is 7431685413.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3145861347 - 2¹⁰ = 3145860323 is a prime.

It is a super-2 number, since 2×3145861347² = 19792887229097308818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3145861299 and 3145861308.

It is not an unprimeable number, because it can be changed into a prime (3145861357) 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, 524310222 + ... + 524310227.

It is an arithmetic number, because the mean of its divisors is an integer number (1048620450).

Almost surely, 2^3145861347 is an apocalyptic number.

3145861347 is a deficient number, since it is larger than the sum of its proper divisors (1048620453).

3145861347 is a wasteful number, since it uses less digits than its factorization.

3145861347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048620452.

The product of its digits is 241920, while the sum is 42.

The square root of 3145861347 is about 56087.9786317888. The cubic root of 3145861347 is about 1465.2549338718.

The spelling of 3145861347 in words is "three billion, one hundred forty-five million, eight hundred sixty-one thousand, three hundred forty-seven".