1231459212 has 48 divisors (see below), whose sum is σ = 2907805824. Its totient is φ = 405600000.

The previous prime is 1231459193. The next prime is 1231459247. The reversal of 1231459212 is 2129541321.

It is a self number, because there is not a number n which added to its sum of digits gives 1231459212.

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, 393012 + ... + 396132.

It is an arithmetic number, because the mean of its divisors is an integer number (60579288).

Almost surely, 2^1231459212 is an apocalyptic number.

1231459212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231459212 is an abundant number, since it is smaller than the sum of its proper divisors (1676346612).

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

1231459212 is a wasteful number, since it uses less digits than its factorization.

1231459212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510 (or 3508 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1231459212 is about 35092.1531399827. The cubic root of 1231459212 is about 1071.8648041337.

The spelling of 1231459212 in words is "one billion, two hundred thirty-one million, four hundred fifty-nine thousand, two hundred twelve".