1155641262 has 16 divisors (see below), whose sum is σ = 2312032080. Its totient is φ = 385088832.

The previous prime is 1155641243. The next prime is 1155641269. The reversal of 1155641262 is 2621465511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155641269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10087 + ... + 49122.

It is an arithmetic number, because the mean of its divisors is an integer number (144502005).

Almost surely, 2^1155641262 is an apocalyptic number.

1155641262 is an abundant number, since it is smaller than the sum of its proper divisors (1156390818).

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

1155641262 is a wasteful number, since it uses less digits than its factorization.

1155641262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62467.

The product of its digits is 14400, while the sum is 33.

The square root of 1155641262 is about 33994.7240318259. The cubic root of 1155641262 is about 1049.3998874651.

The spelling of 1155641262 in words is "one billion, one hundred fifty-five million, six hundred forty-one thousand, two hundred sixty-two".