1129261542 has 32 divisors (see below), whose sum is σ = 2380060800. Its totient is φ = 356208768.

The previous prime is 1129261501. The next prime is 1129261559. The reversal of 1129261542 is 2451629211.

1129261542 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 106309 + ... + 116447.

It is an arithmetic number, because the mean of its divisors is an integer number (74376900).

Almost surely, 2^1129261542 is an apocalyptic number.

1129261542 is an abundant number, since it is smaller than the sum of its proper divisors (1250799258).

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

1129261542 is a wasteful number, since it uses less digits than its factorization.

1129261542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11140.

The product of its digits is 8640, while the sum is 33.

The square root of 1129261542 is about 33604.4869325511. The cubic root of 1129261542 is about 1041.3534960035.

The spelling of 1129261542 in words is "one billion, one hundred twenty-nine million, two hundred sixty-one thousand, five hundred forty-two".