145530057 has 8 divisors (see below), whose sum is σ = 194126400. Its totient is φ = 96976880.

The previous prime is 145530029. The next prime is 145530067. The reversal of 145530057 is 750035541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145530057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145530067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1869 + ... + 17162.

It is an arithmetic number, because the mean of its divisors is an integer number (24265800).

Almost surely, 2^145530057 is an apocalyptic number.

It is an amenable number.

145530057 is a deficient number, since it is larger than the sum of its proper divisors (48596343).

145530057 is a wasteful number, since it uses less digits than its factorization.

145530057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21583.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 145530057 is about 12063.5839202121. The cubic root of 145530057 is about 525.9981699349.

Adding to 145530057 its reverse (750035541), we get a palindrome (895565598).

The spelling of 145530057 in words is "one hundred forty-five million, five hundred thirty thousand, fifty-seven".