145541415 has 8 divisors (see below), whose sum is σ = 232866288. Its totient is φ = 77622080.

The previous prime is 145541371. The next prime is 145541441. The reversal of 145541415 is 514145541.

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

It is not a de Polignac number, because 145541415 - 2⁶ = 145541351 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 4851366 + ... + 4851395.

It is an arithmetic number, because the mean of its divisors is an integer number (29108286).

Almost surely, 2^145541415 is an apocalyptic number.

145541415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145541415 is a deficient number, since it is larger than the sum of its proper divisors (87324873).

145541415 is an equidigital number, since it uses as much as digits as its factorization.

145541415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9702769.

The product of its digits is 8000, while the sum is 30.

The square root of 145541415 is about 12064.0546666533. The cubic root of 145541415 is about 526.0118535499.

Adding to 145541415 its reverse (514145541), we get a palindrome (659686956).

The spelling of 145541415 in words is "one hundred forty-five million, five hundred forty-one thousand, four hundred fifteen".