145919744 has 36 divisors (see below), whose sum is σ = 296236920. Its totient is φ = 71715840.

The previous prime is 145919737. The next prime is 145919771. The reversal of 145919744 is 447919541.

It is a junction number, because it is equal to n+sod(n) for n = 145919695 and 145919704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10274 + ... + 19934.

Almost surely, 2^145919744 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 145919744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148118460).

145919744 is an abundant number, since it is smaller than the sum of its proper divisors (150317176).

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

145919744 is an frugal number, since it uses more digits than its factorization.

145919744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9736 (or 9722 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 145919744 is about 12079.7245001697. The cubic root of 145919744 is about 526.4672413434.

The spelling of 145919744 in words is "one hundred forty-five million, nine hundred nineteen thousand, seven hundred forty-four".