146870149 has 4 divisors (see below), whose sum is σ = 146945836. Its totient is φ = 146794464.

The previous prime is 146870147. The next prime is 146870177. The reversal of 146870149 is 941078641.

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 79744900 + 67125249 = 8930^2 + 8193^2 .

It is a cyclic number.

It is not a de Polignac number, because 146870149 - 2¹ = 146870147 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 (146870147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34854 + ... + 38839.

It is an arithmetic number, because the mean of its divisors is an integer number (36736459).

Almost surely, 2^146870149 is an apocalyptic number.

It is an amenable number.

146870149 is a deficient number, since it is larger than the sum of its proper divisors (75687).

146870149 is an equidigital number, since it uses as much as digits as its factorization.

146870149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75686.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 146870149 is about 12118.9995049096. Note that the first 3 decimals coincide. The cubic root of 146870149 is about 527.6077648699.

It can be divided in two parts, 1468 and 70149, that added together give a palindrome (71617).

The spelling of 146870149 in words is "one hundred forty-six million, eight hundred seventy thousand, one hundred forty-nine".