3151440002 has 4 divisors (see below), whose sum is σ = 4727160006. Its totient is φ = 1575720000.

The previous prime is 3151439981. The next prime is 3151440007. The reversal of 3151440002 is 2000441513.

3151440002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 1971448801 + 1179991201 = 44401^2 + 34351^2 .

It is not an unprimeable number, because it can be changed into a prime (3151440007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 787859999 + ... + 787860002.

Almost surely, 2^3151440002 is an apocalyptic number.

3151440002 is a deficient number, since it is larger than the sum of its proper divisors (1575720004).

3151440002 is a wasteful number, since it uses less digits than its factorization.

3151440002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575720003.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 3151440002 is about 56137.6878932505. The cubic root of 3151440002 is about 1466.1205499717.

Adding to 3151440002 its reverse (2000441513), we get a palindrome (5151881515).

The spelling of 3151440002 in words is "three billion, one hundred fifty-one million, four hundred forty thousand, two".