145172541 has 8 divisors (see below), whose sum is σ = 193826880. Its totient is φ = 96649952.

The previous prime is 145172507. The next prime is 145172551. The reversal of 145172541 is 145271541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145172541 - 2¹⁴ = 145156157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145172499 and 145172508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145172501) 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 7 ways as a sum of consecutive naturals, for example, 30336 + ... + 34793.

It is an arithmetic number, because the mean of its divisors is an integer number (24228360).

Almost surely, 2^145172541 is an apocalyptic number.

It is an amenable number.

145172541 is a deficient number, since it is larger than the sum of its proper divisors (48654339).

145172541 is an equidigital number, since it uses as much as digits as its factorization.

145172541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65875.

The product of its digits is 5600, while the sum is 30.

The square root of 145172541 is about 12048.7568238387. The cubic root of 145172541 is about 525.5670860997.

The spelling of 145172541 in words is "one hundred forty-five million, one hundred seventy-two thousand, five hundred forty-one".