145454554 has 16 divisors (see below), whose sum is σ = 249609600. Its totient is φ = 62272944.

The previous prime is 145454549. The next prime is 145454579. The reversal of 145454554 is 455454541.

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, 10107 + ... + 19825.

It is an arithmetic number, because the mean of its divisors is an integer number (15600600).

Almost surely, 2^145454554 is an apocalyptic number.

145454554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145454554 is a deficient number, since it is larger than the sum of its proper divisors (104155046).

145454554 is a wasteful number, since it uses less digits than its factorization.

145454554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10797.

The product of its digits is 160000, while the sum is 37.

The square root of 145454554 is about 12060.4541373864. The cubic root of 145454554 is about 525.9071891649.

The spelling of 145454554 in words is "one hundred forty-five million, four hundred fifty-four thousand, five hundred fifty-four".