148730287 has 4 divisors (see below), whose sum is σ = 149036176. Its totient is φ = 148424400.

The previous prime is 148730279. The next prime is 148730291. The reversal of 148730287 is 782037841.

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

It is a cyclic number.

It is not a de Polignac number, because 148730287 - 2³ = 148730279 is a prime.

It is a super-2 number, since 2×148730287² = 44241396542204738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148730227) 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, 152214 + ... + 153187.

It is an arithmetic number, because the mean of its divisors is an integer number (37259044).

Almost surely, 2^148730287 is an apocalyptic number.

148730287 is a deficient number, since it is larger than the sum of its proper divisors (305889).

148730287 is an equidigital number, since it uses as much as digits as its factorization.

148730287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305888.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 148730287 is about 12195.5027366649. The cubic root of 148730287 is about 529.8258440490.

The spelling of 148730287 in words is "one hundred forty-eight million, seven hundred thirty thousand, two hundred eighty-seven".