145455645 has 8 divisors (see below), whose sum is σ = 232729056. Its totient is φ = 77576336.

The previous prime is 145455643. The next prime is 145455683. The reversal of 145455645 is 546554541.

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 145455645 - 2¹ = 145455643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145455643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4848507 + ... + 4848536.

It is an arithmetic number, because the mean of its divisors is an integer number (29091132).

Almost surely, 2^145455645 is an apocalyptic number.

145455645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145455645 is a deficient number, since it is larger than the sum of its proper divisors (87273411).

145455645 is an equidigital number, since it uses as much as digits as its factorization.

145455645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9697051.

The product of its digits is 240000, while the sum is 39.

The square root of 145455645 is about 12060.4993677708. The cubic root of 145455645 is about 525.9085040390.

The spelling of 145455645 in words is "one hundred forty-five million, four hundred fifty-five thousand, six hundred forty-five".