87142246 has 16 divisors (see below), whose sum is σ = 137795760. Its totient is φ = 41217120.

The previous prime is 87142243. The next prime is 87142247. The reversal of 87142246 is 64224178.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87142243) 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, 34540 + ... + 36976.

It is an arithmetic number, because the mean of its divisors is an integer number (8612235).

Almost surely, 2^87142246 is an apocalyptic number.

87142246 is a deficient number, since it is larger than the sum of its proper divisors (50653514).

87142246 is a wasteful number, since it uses less digits than its factorization.

87142246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399.

The product of its digits is 21504, while the sum is 34.

The square root of 87142246 is about 9335.0011247991. The cubic root of 87142246 is about 443.3461244668.

The spelling of 87142246 in words is "eighty-seven million, one hundred forty-two thousand, two hundred forty-six".