148415789 has 4 divisors (see below), whose sum is σ = 150448956. Its totient is φ = 146382624.

The previous prime is 148415759. The next prime is 148415791. The reversal of 148415789 is 987514841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 987514841 = 619 ⋅1595339.

It can be written as a sum of positive squares in 2 ways, for example, as 53509225 + 94906564 = 7315^2 + 9742^2 .

It is a cyclic number.

It is not a de Polignac number, because 148415789 - 2¹² = 148411693 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 (148415759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016474 + ... + 1016619.

It is an arithmetic number, because the mean of its divisors is an integer number (37612239).

Almost surely, 2^148415789 is an apocalyptic number.

It is an amenable number.

148415789 is a deficient number, since it is larger than the sum of its proper divisors (2033167).

148415789 is an equidigital number, since it uses as much as digits as its factorization.

148415789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033166.

The product of its digits is 322560, while the sum is 47.

The square root of 148415789 is about 12182.6018977885. The cubic root of 148415789 is about 529.4521323266.

The spelling of 148415789 in words is "one hundred forty-eight million, four hundred fifteen thousand, seven hundred eighty-nine".