87144430 has 16 divisors (see below), whose sum is σ = 157114080. Its totient is φ = 34801312.

The previous prime is 87144427. The next prime is 87144437. The reversal of 87144430 is 3444178.

It is a junction number, because it is equal to n+sod(n) for n = 87144392 and 87144401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87144437) 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 7 ways as a sum of consecutive naturals, for example, 265 + ... + 13204.

It is an arithmetic number, because the mean of its divisors is an integer number (9819630).

Almost surely, 2^87144430 is an apocalyptic number.

87144430 is a deficient number, since it is larger than the sum of its proper divisors (69969650).

87144430 is a wasteful number, since it uses less digits than its factorization.

87144430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14123.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 87144430 is about 9335.1181031629. The cubic root of 87144430 is about 443.3498282190.

The spelling of 87144430 in words is "eighty-seven million, one hundred forty-four thousand, four hundred thirty".