145603783 has 16 divisors (see below), whose sum is σ = 165719680. Its totient is φ = 126818784.

The previous prime is 145603771. The next prime is 145603811. The reversal of 145603783 is 387306541.

It is a cyclic number.

It is not a de Polignac number, because 145603783 - 2¹³ = 145595591 is a prime.

It is a super-3 number, since 3×145603783³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145603763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68860 + ... + 70942.

It is an arithmetic number, because the mean of its divisors is an integer number (10357480).

Almost surely, 2^145603783 is an apocalyptic number.

145603783 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145603783 is a deficient number, since it is larger than the sum of its proper divisors (20115897).

145603783 is a wasteful number, since it uses less digits than its factorization.

145603783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 145603783 is about 12066.6392587166. The cubic root of 145603783 is about 526.0869790672.

The spelling of 145603783 in words is "one hundred forty-five million, six hundred three thousand, seven hundred eighty-three".