145541000 has 128 divisors (see below), whose sum is σ = 378069120. Its totient is φ = 52000000.

The previous prime is 145540981. The next prime is 145541003. The reversal of 145541000 is 145541.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145541003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1110935 + ... + 1111065.

It is an arithmetic number, because the mean of its divisors is an integer number (2953665).

Almost surely, 2^145541000 is an apocalyptic number.

145541000 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 145541000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189034560).

145541000 is an abundant number, since it is smaller than the sum of its proper divisors (232528120).

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

145541000 is a wasteful number, since it uses less digits than its factorization.

145541000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 145541000 is about 12064.0374667853. The cubic root of 145541000 is about 526.0113535888.

Adding to 145541000 its reverse (145541), we get a palindrome (145686541).

145541000 divided by its reverse (145541) gives a cube (1000 = 10³).

It can be divided in two parts, 145 and 541000, that added together give a palindrome (541145).

The spelling of 145541000 in words is "one hundred forty-five million, five hundred forty-one thousand".