1143656346 has 16 divisors (see below), whose sum is σ = 2614071744. Its totient is φ = 326758944.

The previous prime is 1143656329. The next prime is 1143656357. The reversal of 1143656346 is 6436563411.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13614915 + ... + 13614998.

It is an arithmetic number, because the mean of its divisors is an integer number (163379484).

Almost surely, 2^1143656346 is an apocalyptic number.

1143656346 is an abundant number, since it is smaller than the sum of its proper divisors (1470415398).

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

1143656346 is a wasteful number, since it uses less digits than its factorization.

1143656346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27229925.

The product of its digits is 155520, while the sum is 39.

The square root of 1143656346 is about 33817.9884972480. The cubic root of 1143656346 is about 1045.7595710810.

The spelling of 1143656346 in words is "one billion, one hundred forty-three million, six hundred fifty-six thousand, three hundred forty-six".