145245129103 has 4 divisors (see below), whose sum is σ = 145823795208. Its totient is φ = 144666463000.

The previous prime is 145245129089. The next prime is 145245129163. The reversal of 145245129103 is 301921542541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301921542541 = 4229 ⋅71393129.

It is a cyclic number.

It is not a de Polignac number, because 145245129103 - 2⁹ = 145245128591 is a prime.

It is a super-2 number, since 2×145245129103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145245129163) 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 3 ways as a sum of consecutive naturals, for example, 289332676 + ... + 289333177.

It is an arithmetic number, because the mean of its divisors is an integer number (36455948802).

Almost surely, 2^145245129103 is an apocalyptic number.

145245129103 is a deficient number, since it is larger than the sum of its proper divisors (578666105).

145245129103 is an equidigital number, since it uses as much as digits as its factorization.

145245129103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578666104.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 145245129103 in words is "one hundred forty-five billion, two hundred forty-five million, one hundred twenty-nine thousand, one hundred three".