145201543 has 4 divisors (see below), whose sum is σ = 146176200. Its totient is φ = 144226888.

The previous prime is 145201523. The next prime is 145201547. The reversal of 145201543 is 345102541.

It is a happy number.

145201543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145201543 - 2¹³ = 145193351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145201547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487105 + ... + 487402.

It is an arithmetic number, because the mean of its divisors is an integer number (36544050).

Almost surely, 2^145201543 is an apocalyptic number.

145201543 is a deficient number, since it is larger than the sum of its proper divisors (974657).

145201543 is an equidigital number, since it uses as much as digits as its factorization.

145201543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974656.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145201543 is about 12049.9602903910. The cubic root of 145201543 is about 525.6020823453.

The spelling of 145201543 in words is "one hundred forty-five million, two hundred one thousand, five hundred forty-three".