87701145 has 16 divisors (see below), whose sum is σ = 160368000. Its totient is φ = 40091904.

The previous prime is 87701143. The next prime is 87701161. The reversal of 87701145 is 54110778.

It is not a de Polignac number, because 87701145 - 2¹ = 87701143 is a prime.

It is a super-2 number, since 2×87701145² = 15382981668622050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87701143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417520 + ... + 417729.

It is an arithmetic number, because the mean of its divisors is an integer number (10023000).

Almost surely, 2^87701145 is an apocalyptic number.

It is an amenable number.

87701145 is a deficient number, since it is larger than the sum of its proper divisors (72666855).

87701145 is a wasteful number, since it uses less digits than its factorization.

87701145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835264.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 87701145 is about 9364.8889475530. Note that the first 3 decimals coincide. The cubic root of 87701145 is about 444.2919261507.

The spelling of 87701145 in words is "eighty-seven million, seven hundred one thousand, one hundred forty-five".