145101123 has 24 divisors (see below), whose sum is σ = 218181600. Its totient is φ = 92811264.

The previous prime is 145101097. The next prime is 145101199. The reversal of 145101123 is 321101541.

It is not a de Polignac number, because 145101123 - 2⁸ = 145100867 is a prime.

It is a super-2 number, since 2×145101123² = 42108671791722258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145101096 and 145101105.

It is not an unprimeable number, because it can be changed into a prime (145101223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41923 + ... + 45251.

It is an arithmetic number, because the mean of its divisors is an integer number (9090900).

Almost surely, 2^145101123 is an apocalyptic number.

145101123 is a deficient number, since it is larger than the sum of its proper divisors (73080477).

145101123 is a wasteful number, since it uses less digits than its factorization.

145101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531 (or 3528 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 145101123 is about 12045.7927509982. The cubic root of 145101123 is about 525.4808872756.

Adding to 145101123 its reverse (321101541), we get a palindrome (466202664).

The spelling of 145101123 in words is "one hundred forty-five million, one hundred one thousand, one hundred twenty-three".