145240530 has 16 divisors (see below), whose sum is σ = 348577344. Its totient is φ = 38730800.

The previous prime is 145240519. The next prime is 145240531. The reversal of 145240530 is 35042541.

It is a self number, because there is not a number n which added to its sum of digits gives 145240530.

It is not an unprimeable number, because it can be changed into a prime (145240531) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2420646 + ... + 2420705.

It is an arithmetic number, because the mean of its divisors is an integer number (21786084).

Almost surely, 2^145240530 is an apocalyptic number.

145240530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145240530 is an abundant number, since it is smaller than the sum of its proper divisors (203336814).

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

145240530 is a wasteful number, since it uses less digits than its factorization.

145240530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841361.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145240530 is about 12051.5779049882. The cubic root of 145240530 is about 525.6491199874.

The spelling of 145240530 in words is "one hundred forty-five million, two hundred forty thousand, five hundred thirty".