147988 has 6 divisors (see below), whose sum is σ = 258986. Its totient is φ = 73992.

The previous prime is 147977. The next prime is 147997. The reversal of 147988 is 889741.

It can be written as a sum of positive squares in only one way, i.e., 138384 + 9604 = 372^2 + 98^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18495 + ... + 18502.

2¹⁴⁷⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

147988 is a deficient number, since it is larger than the sum of its proper divisors (110998).

147988 is a wasteful number, since it uses less digits than its factorization.

147988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37001 (or 36999 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 147988 is about 384.6920846599. The cubic root of 147988 is about 52.8942950741.

The spelling of 147988 in words is "one hundred forty-seven thousand, nine hundred eighty-eight".