145262500 has 36 divisors (see below), whose sum is σ = 317768724. Its totient is φ = 58100000.

The previous prime is 145262459. The next prime is 145262519. The reversal of 145262500 is 5262541.

It can be written as a sum of positive squares in 6 ways, for example, as 140801956 + 4460544 = 11866^2 + 2112^2 .

It is a super-2 number, since 2×145262500² = 42202387812500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6690 + ... + 18310.

It is an arithmetic number, because the mean of its divisors is an integer number (8826909).

Almost surely, 2^145262500 is an apocalyptic number.

145262500 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 145262500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158884362).

145262500 is an abundant number, since it is smaller than the sum of its proper divisors (172506224).

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

145262500 is an equidigital number, since it uses as much as digits as its factorization.

145262500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11650 (or 11628 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145262500 is about 12052.4893694207. The cubic root of 145262500 is about 525.6756229865.

The spelling of 145262500 in words is "one hundred forty-five million, two hundred sixty-two thousand, five hundred".