145137803 has 4 divisors (see below), whose sum is σ = 145162248. Its totient is φ = 145113360.

The previous prime is 145137799. The next prime is 145137809. The reversal of 145137803 is 308731541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 145137803 - 2² = 145137799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145137803.

It is not an unprimeable number, because it can be changed into a prime (145137809) 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, 3023 + ... + 17303.

It is an arithmetic number, because the mean of its divisors is an integer number (36290562).

Almost surely, 2^145137803 is an apocalyptic number.

145137803 is a deficient number, since it is larger than the sum of its proper divisors (24445).

145137803 is a wasteful number, since it uses less digits than its factorization.

145137803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24444.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 145137803 is about 12047.3151780801. The cubic root of 145137803 is about 525.5251621799.

The spelling of 145137803 in words is "one hundred forty-five million, one hundred thirty-seven thousand, eight hundred three".