145301803 has 4 divisors (see below), whose sum is σ = 150312240. Its totient is φ = 140291368.

The previous prime is 145301747. The next prime is 145301809. The reversal of 145301803 is 308103541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145301803 - 2⁹ = 145301291 is a prime.

It is a super-2 number, since 2×145301803² = 42225227910101618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145301809) 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 3 ways as a sum of consecutive naturals, for example, 2505175 + ... + 2505232.

It is an arithmetic number, because the mean of its divisors is an integer number (37578060).

Almost surely, 2^145301803 is an apocalyptic number.

145301803 is a deficient number, since it is larger than the sum of its proper divisors (5010437).

145301803 is an equidigital number, since it uses as much as digits as its factorization.

145301803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010436.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 145301803 is about 12054.1197521843. The cubic root of 145301803 is about 525.7230285820.

The spelling of 145301803 in words is "one hundred forty-five million, three hundred one thousand, eight hundred three".