145729948 has 48 divisors (see below), whose sum is σ = 316845760. Its totient is φ = 57106944.

The previous prime is 145729931. The next prime is 145729951. The reversal of 145729948 is 849927541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37840 + ... + 41512.

Almost surely, 2^145729948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145729948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158422880).

145729948 is an abundant number, since it is smaller than the sum of its proper divisors (171115812).

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

145729948 is a wasteful number, since it uses less digits than its factorization.

145729948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806 (or 3804 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 145729948 is about 12071.8659700976. The cubic root of 145729948 is about 526.2388858394.

The spelling of 145729948 in words is "one hundred forty-five million, seven hundred twenty-nine thousand, nine hundred forty-eight".