1309229052 has 48 divisors (see below), whose sum is σ = 3104583552. Its totient is φ = 429352000.

The previous prime is 1309229027. The next prime is 1309229063. The reversal of 1309229052 is 2509229031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247378 + ... + 252614.

It is an arithmetic number, because the mean of its divisors is an integer number (64678824).

Almost surely, 2^1309229052 is an apocalyptic number.

1309229052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1309229052 is an abundant number, since it is smaller than the sum of its proper divisors (1795354500).

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

1309229052 is a wasteful number, since it uses less digits than its factorization.

1309229052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578 (or 5576 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 1309229052 is about 36183.2703331249. The cubic root of 1309229052 is about 1093.9694931596.

The spelling of 1309229052 in words is "one billion, three hundred nine million, two hundred twenty-nine thousand, fifty-two".