148620287 has 4 divisors (see below), whose sum is σ = 148725720. Its totient is φ = 148514856.

The previous prime is 148620259. The next prime is 148620317. The reversal of 148620287 is 782026841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782026841 = 23 ⋅34001167.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148620287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148620287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148620247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50573 + ... + 53430.

It is an arithmetic number, because the mean of its divisors is an integer number (37181430).

Almost surely, 2^148620287 is an apocalyptic number.

148620287 is a deficient number, since it is larger than the sum of its proper divisors (105433).

148620287 is a wasteful number, since it uses less digits than its factorization.

148620287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105432.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 148620287 is about 12190.9920433080. The cubic root of 148620287 is about 529.6951931955.

The spelling of 148620287 in words is "one hundred forty-eight million, six hundred twenty thousand, two hundred eighty-seven".