87351245 has 4 divisors (see below), whose sum is σ = 104821500. Its totient is φ = 69880992.

The previous prime is 87351241. The next prime is 87351247. The reversal of 87351245 is 54215378.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23319241 + 64032004 = 4829^2 + 8002^2 .

It is a cyclic number.

It is not a de Polignac number, because 87351245 - 2² = 87351241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87351241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8735120 + ... + 8735129.

It is an arithmetic number, because the mean of its divisors is an integer number (26205375).

Almost surely, 2^87351245 is an apocalyptic number.

It is an amenable number.

87351245 is a deficient number, since it is larger than the sum of its proper divisors (17470255).

87351245 is a wasteful number, since it uses less digits than its factorization.

87351245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17470254.

The product of its digits is 33600, while the sum is 35.

The square root of 87351245 is about 9346.1887954396. The cubic root of 87351245 is about 443.7002769123.

The spelling of 87351245 in words is "eighty-seven million, three hundred fifty-one thousand, two hundred forty-five".