145153541 has 4 divisors (see below), whose sum is σ = 156319212. Its totient is φ = 133987872.

The previous prime is 145153523. The next prime is 145153549. The reversal of 145153541 is 145351541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9431041 + 135722500 = 3071^2 + 11650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145153541 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 (145153549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5582816 + ... + 5582841.

It is an arithmetic number, because the mean of its divisors is an integer number (39079803).

Almost surely, 2^145153541 is an apocalyptic number.

It is an amenable number.

145153541 is a deficient number, since it is larger than the sum of its proper divisors (11165671).

145153541 is a wasteful number, since it uses less digits than its factorization.

145153541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11165670.

The product of its digits is 6000, while the sum is 29.

The square root of 145153541 is about 12047.9683349517. The cubic root of 145153541 is about 525.5441565791.

The spelling of 145153541 in words is "one hundred forty-five million, one hundred fifty-three thousand, five hundred forty-one".