1209346152 has 48 divisors (see below), whose sum is σ = 3456563040. Its totient is φ = 345398688.

The previous prime is 1209346129. The next prime is 1209346183. The reversal of 1209346152 is 2516439021.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 449403 + ... + 452085.

It is an arithmetic number, because the mean of its divisors is an integer number (72011730).

Almost surely, 2^1209346152 is an apocalyptic number.

1209346152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1209346152 is an abundant number, since it is smaller than the sum of its proper divisors (2247216888).

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

1209346152 is an frugal number, since it uses more digits than its factorization.

1209346152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1209346152 is about 34775.6545876566. The cubic root of 1209346152 is about 1065.4102622684.

It can be divided in two parts, 1209 and 346152, that added together give a triangular number (347361 = T₈₃₃).

The spelling of 1209346152 in words is "one billion, two hundred nine million, three hundred forty-six thousand, one hundred fifty-two".