3145431346 has 16 divisors (see below), whose sum is σ = 4854683160. Its totient is φ = 1527361920.

The previous prime is 3145431343. The next prime is 3145431347. The reversal of 3145431346 is 6431345413.

It can be written as a sum of positive squares in 4 ways, for example, as 3093028225 + 52403121 = 55615^2 + 7239^2 .

It is not an unprimeable number, because it can be changed into a prime (3145431343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750 + ... + 79318.

Almost surely, 2^3145431346 is an apocalyptic number.

3145431346 is a deficient number, since it is larger than the sum of its proper divisors (1709251814).

3145431346 is a wasteful number, since it uses less digits than its factorization.

3145431346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79149.

The product of its digits is 51840, while the sum is 34.

The square root of 3145431346 is about 56084.1452283977. The cubic root of 3145431346 is about 1465.1881699846.

Adding to 3145431346 its reverse (6431345413), we get a palindrome (9576776759).

The spelling of 3145431346 in words is "three billion, one hundred forty-five million, four hundred thirty-one thousand, three hundred forty-six".