1000313156 has 6 divisors (see below), whose sum is σ = 1750548030. Its totient is φ = 500156576.

The previous prime is 1000313137. The next prime is 1000313189. The reversal of 1000313156 is 6513130001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 995402500 + 4910656 = 31550^2 + 2216^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125039141 + ... + 125039148.

It is an arithmetic number, because the mean of its divisors is an integer number (291758005).

Almost surely, 2^1000313156 is an apocalyptic number.

It is an amenable number.

1000313156 is a deficient number, since it is larger than the sum of its proper divisors (750234874).

1000313156 is a wasteful number, since it uses less digits than its factorization.

1000313156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250078293 (or 250078291 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1000313156 is about 31627.7276452166. The cubic root of 1000313156 is about 1000.1043744389.

Adding to 1000313156 its reverse (6513130001), we get a palindrome (7513443157).

The spelling of 1000313156 in words is "one billion, three hundred thirteen thousand, one hundred fifty-six".