1157105026 has 16 divisors (see below), whose sum is σ = 2163936960. Its totient is φ = 450820080.

The previous prime is 1157105023. The next prime is 1157105041. The reversal of 1157105026 is 6205017511.

It is a junction number, because it is equal to n+sod(n) for n = 1157104985 and 1157105003.

It is not an unprimeable number, because it can be changed into a prime (1157105023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3756681 + ... + 3756988.

It is an arithmetic number, because the mean of its divisors is an integer number (135246060).

Almost surely, 2^1157105026 is an apocalyptic number.

1157105026 is a deficient number, since it is larger than the sum of its proper divisors (1006831934).

1157105026 is a wasteful number, since it uses less digits than its factorization.

1157105026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513689.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 1157105026 is about 34016.2465007531. The cubic root of 1157105026 is about 1049.8427658739.

It can be divided in two parts, 115710 and 5026, that multiplied together give a triangular number (581558460 = T₃₄₁₀₄).

The spelling of 1157105026 in words is "one billion, one hundred fifty-seven million, one hundred five thousand, twenty-six".