145777541 has 16 divisors (see below), whose sum is σ = 180499200. Its totient is φ = 115328304.

The previous prime is 145777529. The next prime is 145777543.

145777541 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 145777541 - 2¹⁰ = 145776517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145777543) 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 15 ways as a sum of consecutive naturals, for example, 10640 + ... + 20118.

It is an arithmetic number, because the mean of its divisors is an integer number (11281200).

Almost surely, 2^145777541 is an apocalyptic number.

It is an amenable number.

145777541 is a deficient number, since it is larger than the sum of its proper divisors (34721659).

145777541 is an frugal number, since it uses more digits than its factorization.

145777541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9525 (or 9499 counting only the distinct ones).

The product of its digits is 137200, while the sum is 41.

The square root of 145777541 is about 12073.8370454467. The cubic root of 145777541 is about 526.2961665875.

The spelling of 145777541 in words is "one hundred forty-five million, seven hundred seventy-seven thousand, five hundred forty-one".