145353240 has 96 divisors (see below), whose sum is σ = 480214800. Its totient is φ = 38119680.

The previous prime is 145353233. The next prime is 145353253. The reversal of 145353240 is 42353541.

It is a super-2 number, since 2×145353240² = 42255128756995200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18651 + ... + 25269.

Almost surely, 2^145353240 is an apocalyptic number.

145353240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145353240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240107400).

145353240 is an abundant number, since it is smaller than the sum of its proper divisors (334861560).

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

145353240 is a wasteful number, since it uses less digits than its factorization.

145353240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6697 (or 6690 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 145353240 is about 12056.2531492997. The cubic root of 145353240 is about 525.7850567757.

The spelling of 145353240 in words is "one hundred forty-five million, three hundred fifty-three thousand, two hundred forty".