145113541 has 4 divisors (see below), whose sum is σ = 145204684. Its totient is φ = 145022400.

The previous prime is 145113517. The next prime is 145113557. The reversal of 145113541 is 145311541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145311541 = 5167 ⋅28123.

It can be written as a sum of positive squares in 2 ways, for example, as 56565441 + 88548100 = 7521^2 + 9410^2 .

It is a cyclic number.

It is not a de Polignac number, because 145113541 - 2¹⁵ = 145080773 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 (145113341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43140 + ... + 46381.

It is an arithmetic number, because the mean of its divisors is an integer number (36301171).

Almost surely, 2^145113541 is an apocalyptic number.

It is an amenable number.

145113541 is a deficient number, since it is larger than the sum of its proper divisors (91143).

145113541 is an equidigital number, since it uses as much as digits as its factorization.

145113541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91142.

The product of its digits is 1200, while the sum is 25.

The square root of 145113541 is about 12046.3081896488. The cubic root of 145113541 is about 525.4958773629.

The spelling of 145113541 in words is "one hundred forty-five million, one hundred thirteen thousand, five hundred forty-one".