87070131 has 6 divisors (see below), whose sum is σ = 125767980. Its totient is φ = 58046748.

The previous prime is 87070129. The next prime is 87070133. The reversal of 87070131 is 13107078.

It is an interprime number because it is at equal distance from previous prime (87070129) and next prime (87070133).

It is not a de Polignac number, because 87070131 - 2¹ = 87070129 is a prime.

It is a super-2 number, since 2×87070131² = 15162415424714322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87070095 and 87070104.

It is not an unprimeable number, because it can be changed into a prime (87070133) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4837221 + ... + 4837238.

It is an arithmetic number, because the mean of its divisors is an integer number (20961330).

Almost surely, 2^87070131 is an apocalyptic number.

87070131 is a deficient number, since it is larger than the sum of its proper divisors (38697849).

87070131 is a wasteful number, since it uses less digits than its factorization.

87070131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9674465 (or 9674462 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 87070131 is about 9331.1377119835. The cubic root of 87070131 is about 443.2237929503.

The spelling of 87070131 in words is "eighty-seven million, seventy thousand, one hundred thirty-one".