145043523 has 12 divisors (see below), whose sum is σ = 211362840. Its totient is φ = 95839296.

The previous prime is 145043501. The next prime is 145043531. The reversal of 145043523 is 325340541.

It is not a de Polignac number, because 145043523 - 2⁵ = 145043491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145043533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70293 + ... + 72326.

It is an arithmetic number, because the mean of its divisors is an integer number (17613570).

Almost surely, 2^145043523 is an apocalyptic number.

145043523 is a deficient number, since it is larger than the sum of its proper divisors (66319317).

145043523 is a wasteful number, since it uses less digits than its factorization.

145043523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142738 (or 142735 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 145043523 is about 12043.4016374113. The cubic root of 145043523 is about 525.4113456473.

The spelling of 145043523 in words is "one hundred forty-five million, forty-three thousand, five hundred twenty-three".