1292313906 has 64 divisors (see below), whose sum is σ = 3104586240. Its totient is φ = 396109440.

The previous prime is 1292313877. The next prime is 1292313917. The reversal of 1292313906 is 6093132921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186846 + ... + 193638.

It is an arithmetic number, because the mean of its divisors is an integer number (48509160).

Almost surely, 2^1292313906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1292313906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552293120).

1292313906 is an abundant number, since it is smaller than the sum of its proper divisors (1812272334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1292313906 is a wasteful number, since it uses less digits than its factorization.

1292313906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7088 (or 7082 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 1292313906 is about 35948.7677952945. The cubic root of 1292313906 is about 1089.2377202656.

The spelling of 1292313906 in words is "one billion, two hundred ninety-two million, three hundred thirteen thousand, nine hundred six".