148618789 has 4 divisors (see below), whose sum is σ = 162129600. Its totient is φ = 135107980.

The previous prime is 148618783. The next prime is 148618831. The reversal of 148618789 is 987816841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 148618789 - 2³ = 148618781 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 (148618781) 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, 6755389 + ... + 6755410.

It is an arithmetic number, because the mean of its divisors is an integer number (40532400).

Almost surely, 2^148618789 is an apocalyptic number.

It is an amenable number.

148618789 is a deficient number, since it is larger than the sum of its proper divisors (13510811).

148618789 is a wasteful number, since it uses less digits than its factorization.

148618789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13510810.

The product of its digits is 774144, while the sum is 52.

The square root of 148618789 is about 12190.9306043468. The cubic root of 148618789 is about 529.6934135236.

The spelling of 148618789 in words is "one hundred forty-eight million, six hundred eighteen thousand, seven hundred eighty-nine".