148873861 has 4 divisors (see below), whose sum is σ = 148952812. Its totient is φ = 148794912.

The previous prime is 148873843. The next prime is 148873883. The reversal of 148873861 is 168378841.

148873861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 125776225 + 23097636 = 11215^2 + 4806^2 .

It is a cyclic number.

It is not a de Polignac number, because 148873861 - 2¹³ = 148865669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148873261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36576 + ... + 40441.

It is an arithmetic number, because the mean of its divisors is an integer number (37238203).

Almost surely, 2^148873861 is an apocalyptic number.

It is an amenable number.

148873861 is a deficient number, since it is larger than the sum of its proper divisors (78951).

148873861 is an equidigital number, since it uses as much as digits as its factorization.

148873861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78950.

The product of its digits is 258048, while the sum is 46.

The square root of 148873861 is about 12201.3876669828. The cubic root of 148873861 is about 529.9962750421.

The spelling of 148873861 in words is "one hundred forty-eight million, eight hundred seventy-three thousand, eight hundred sixty-one".