71051087 has 8 divisors (see below), whose sum is σ = 71756160. Its totient is φ = 70349400.

The previous prime is 71051083. The next prime is 71051129. The reversal of 71051087 is 78015017.

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 71051087 - 2² = 71051083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71051083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62708 + ... + 63830.

It is an arithmetic number, because the mean of its divisors is an integer number (8969520).

Almost surely, 2^71051087 is an apocalyptic number.

71051087 is a deficient number, since it is larger than the sum of its proper divisors (705073).

71051087 is a wasteful number, since it uses less digits than its factorization.

71051087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693.

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 71051087 is about 8429.1806837913. The cubic root of 71051087 is about 414.1810666039.

It can be divided in two parts, 7105 and 1087, that added together give a 13-th power (8192 = 2¹³).

The spelling of 71051087 in words is "seventy-one million, fifty-one thousand, eighty-seven".