148981734 has 72 divisors (see below), whose sum is σ = 366329880. Its totient is φ = 44847000.

The previous prime is 148981709. The next prime is 148981739. The reversal of 148981734 is 437189841.

It is a happy number.

148981734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 148981734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148981739) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 986559 + ... + 986709.

It is an arithmetic number, because the mean of its divisors is an integer number (5087915).

Almost surely, 2^148981734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148981734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183164940).

148981734 is an abundant number, since it is smaller than the sum of its proper divisors (217348146).

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

148981734 is a wasteful number, since it uses less digits than its factorization.

148981734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 167 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 148981734 is about 12205.8073882886. The cubic root of 148981734 is about 530.1242547166.

The spelling of 148981734 in words is "one hundred forty-eight million, nine hundred eighty-one thousand, seven hundred thirty-four".