147487 has 2 divisors, whose sum is σ = 147488. Its totient is φ = 147486.

The previous prime is 147481. The next prime is 147503. The reversal of 147487 is 784741.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73743 + 73744.

It is an arithmetic number, because the mean of its divisors is an integer number (73744).

2¹⁴⁷⁴⁸⁷ is an apocalyptic number.

147487 is a deficient number, since it is larger than the sum of its proper divisors (1).

147487 is an equidigital number, since it uses as much as digits as its factorization.

147487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 31.

The square root of 147487 is about 384.0403624621. The cubic root of 147487 is about 52.8345379706.

Subtracting from 147487 its sum of digits (31), we obtain a square (147456 = 384²).

The spelling of 147487 in words is "one hundred forty-seven thousand, four hundred eighty-seven".