145554405 has 8 divisors (see below), whose sum is σ = 232887072. Its totient is φ = 77629008.

The previous prime is 145554397. The next prime is 145554407. The reversal of 145554405 is 504455541.

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

It is not a de Polignac number, because 145554405 - 2³ = 145554397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145554407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4851799 + ... + 4851828.

It is an arithmetic number, because the mean of its divisors is an integer number (29110884).

Almost surely, 2^145554405 is an apocalyptic number.

145554405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145554405 is a deficient number, since it is larger than the sum of its proper divisors (87332667).

145554405 is an equidigital number, since it uses as much as digits as its factorization.

145554405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9703635.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 145554405 is about 12064.5930308486. The cubic root of 145554405 is about 526.0275024534.

The spelling of 145554405 in words is "one hundred forty-five million, five hundred fifty-four thousand, four hundred five".