145285083 has 24 divisors (see below), whose sum is σ = 218382528. Its totient is φ = 96521544.

The previous prime is 145285057. The next prime is 145285087. The reversal of 145285083 is 380582541.

It is a happy number.

145285083 is a `hidden beast` number, since 1 + 4 + 528 + 50 + 83 = 666.

It is not a de Polignac number, because 145285083 - 2⁸ = 145284827 is a prime.

It is a super-2 number, since 2×145285083² = 42215510684633778, which contains 22 as substring.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (145285087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83460 + ... + 85182.

It is an arithmetic number, because the mean of its divisors is an integer number (9099272).

Almost surely, 2^145285083 is an apocalyptic number.

145285083 is a deficient number, since it is larger than the sum of its proper divisors (73097445).

145285083 is an equidigital number, since it uses as much as digits as its factorization.

145285083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085 (or 2073 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 145285083 is about 12053.4261934107. The cubic root of 145285083 is about 525.7028626790.

The spelling of 145285083 in words is "one hundred forty-five million, two hundred eighty-five thousand, eighty-three".