145204545 has 8 divisors (see below), whose sum is σ = 232327296. Its totient is φ = 77442416.

The previous prime is 145204541. The next prime is 145204547. The reversal of 145204545 is 545402541.

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 145204545 - 2² = 145204541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145204541) 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, 4840137 + ... + 4840166.

It is an arithmetic number, because the mean of its divisors is an integer number (29040912).

Almost surely, 2^145204545 is an apocalyptic number.

145204545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145204545 is a deficient number, since it is larger than the sum of its proper divisors (87122751).

145204545 is an equidigital number, since it uses as much as digits as its factorization.

145204545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9680311.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 145204545 is about 12050.0848544730. The cubic root of 145204545 is about 525.6057045441.

The spelling of 145204545 in words is "one hundred forty-five million, two hundred four thousand, five hundred forty-five".