148778322 has 128 divisors (see below), whose sum is σ = 413890560. Its totient is φ = 34421760.

The previous prime is 148778321. The next prime is 148778327. The reversal of 148778322 is 223877841.

148778322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (148778321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 148728 + ... + 149724.

It is an arithmetic number, because the mean of its divisors is an integer number (3233520).

Almost surely, 2^148778322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148778322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206945280).

148778322 is an abundant number, since it is smaller than the sum of its proper divisors (265112238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148778322 is a wasteful number, since it uses less digits than its factorization.

148778322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056.

The product of its digits is 150528, while the sum is 42.

The square root of 148778322 is about 12197.4719511873. The cubic root of 148778322 is about 529.8828766942.

The spelling of 148778322 in words is "one hundred forty-eight million, seven hundred seventy-eight thousand, three hundred twenty-two".