145359520 has 48 divisors (see below), whose sum is σ = 363619368. Its totient is φ = 54722560.

The previous prime is 145359497. The next prime is 145359541. The reversal of 145359520 is 25953541.

It can be written as a sum of positive squares in 4 ways, for example, as 137452176 + 7907344 = 11724^2 + 2812^2 .

It is a super-2 number, since 2×145359520² = 42258780109260800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24001 + ... + 29440.

Almost surely, 2^145359520 is an apocalyptic number.

145359520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145359520 is an abundant number, since it is smaller than the sum of its proper divisors (218259848).

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

145359520 is a wasteful number, since it uses less digits than its factorization.

145359520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53473 (or 53465 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 145359520 is about 12056.5135922455. The cubic root of 145359520 is about 525.7926288637.

The spelling of 145359520 in words is "one hundred forty-five million, three hundred fifty-nine thousand, five hundred twenty".