145510554 has 16 divisors (see below), whose sum is σ = 332595648. Its totient is φ = 41574432.

The previous prime is 145510553. The next prime is 145510567. The reversal of 145510554 is 455015541.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145510553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732227 + ... + 1732310.

It is an arithmetic number, because the mean of its divisors is an integer number (20787228).

Almost surely, 2^145510554 is an apocalyptic number.

145510554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145510554 is an abundant number, since it is smaller than the sum of its proper divisors (187085094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145510554 is a wasteful number, since it uses less digits than its factorization.

145510554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464549.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 145510554 is about 12062.7755512568. The cubic root of 145510554 is about 525.9746719240.

The spelling of 145510554 in words is "one hundred forty-five million, five hundred ten thousand, five hundred fifty-four".