145454515 has 8 divisors (see below), whose sum is σ = 175008240. Its totient is φ = 116055072.

The previous prime is 145454503. The next prime is 145454531. The reversal of 145454515 is 515454541.

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 145454515 - 2⁵ = 145454483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36484 + ... + 40273.

It is an arithmetic number, because the mean of its divisors is an integer number (21876030).

Almost surely, 2^145454515 is an apocalyptic number.

145454515 is a deficient number, since it is larger than the sum of its proper divisors (29553725).

145454515 is an equidigital number, since it uses as much as digits as its factorization.

145454515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77141.

The product of its digits is 40000, while the sum is 34.

The square root of 145454515 is about 12060.4525205317. The cubic root of 145454515 is about 525.9071421619.

The spelling of 145454515 in words is "one hundred forty-five million, four hundred fifty-four thousand, five hundred fifteen".