87134745 has 8 divisors (see below), whose sum is σ = 139415616. Its totient is φ = 46471856.

The previous prime is 87134743. The next prime is 87134759. The reversal of 87134745 is 54743178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87134745 - 2¹ = 87134743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87134743) 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, 2904477 + ... + 2904506.

It is an arithmetic number, because the mean of its divisors is an integer number (17426952).

Almost surely, 2^87134745 is an apocalyptic number.

It is an amenable number.

87134745 is a deficient number, since it is larger than the sum of its proper divisors (52280871).

87134745 is a wasteful number, since it uses less digits than its factorization.

87134745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808991.

The product of its digits is 94080, while the sum is 39.

The square root of 87134745 is about 9334.5993486598. The cubic root of 87134745 is about 443.3334033706. Note that the first 3 decimals are identical.

It can be divided in two parts, 8 and 7134745, that added together give a triangular number (7134753 = T₃₇₇₇).

The spelling of 87134745 in words is "eighty-seven million, one hundred thirty-four thousand, seven hundred forty-five".