1157961134 has 16 divisors (see below), whose sum is σ = 1923129216. Its totient is φ = 518489400.

The previous prime is 1157961121. The next prime is 1157961149. The reversal of 1157961134 is 4311697511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391322 + ... + 394269.

It is an arithmetic number, because the mean of its divisors is an integer number (120195576).

Almost surely, 2^1157961134 is an apocalyptic number.

1157961134 is a deficient number, since it is larger than the sum of its proper divisors (765168082).

1157961134 is a wasteful number, since it uses less digits than its factorization.

1157961134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785671.

The product of its digits is 22680, while the sum is 38.

The square root of 1157961134 is about 34028.8279845192. The cubic root of 1157961134 is about 1050.1016179808.

The spelling of 1157961134 in words is "one billion, one hundred fifty-seven million, nine hundred sixty-one thousand, one hundred thirty-four".