145259500 has 48 divisors (see below), whose sum is σ = 318532032. Its totient is φ = 57868800.

The previous prime is 145259479. The next prime is 145259507. The reversal of 145259500 is 5952541.

It is a super-2 number, since 2×145259500² = 42200644680500000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (145259507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176089 + ... + 176911.

It is an arithmetic number, because the mean of its divisors is an integer number (6636084).

Almost surely, 2^145259500 is an apocalyptic number.

145259500 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 145259500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159266016).

145259500 is an abundant number, since it is smaller than the sum of its proper divisors (173272532).

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

145259500 is a wasteful number, since it uses less digits than its factorization.

145259500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 145259500 is about 12052.3649131612. The cubic root of 145259500 is about 525.6720041638.

It can be divided in two parts, 14525 and 9500, that added together give a square (24025 = 155²).

The spelling of 145259500 in words is "one hundred forty-five million, two hundred fifty-nine thousand, five hundred".