1189072534 has 16 divisors (see below), whose sum is σ = 1926359568. Its totient is φ = 547216992.

The previous prime is 1189072519. The next prime is 1189072541. The reversal of 1189072534 is 4352709811.

It is a super-2 number, since 2×1189072534² = 2827786982226362312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56877 + ... + 74920.

It is an arithmetic number, because the mean of its divisors is an integer number (120397473).

Almost surely, 2^1189072534 is an apocalyptic number.

1189072534 is a deficient number, since it is larger than the sum of its proper divisors (737287034).

1189072534 is a wasteful number, since it uses less digits than its factorization.

1189072534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132159.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1189072534 is about 34482.9310529137. The cubic root of 1189072534 is about 1059.4231268373.

The spelling of 1189072534 in words is "one billion, one hundred eighty-nine million, seventy-two thousand, five hundred thirty-four".