145244553 has 8 divisors (see below), whose sum is σ = 193732416. Its totient is φ = 96793200.

The previous prime is 145244537. The next prime is 145244587. The reversal of 145244553 is 355442541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145244553 - 2⁴ = 145244537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145244453) 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, 2148 + ... + 17178.

It is an arithmetic number, because the mean of its divisors is an integer number (24216552).

Almost surely, 2^145244553 is an apocalyptic number.

It is an amenable number.

145244553 is a deficient number, since it is larger than the sum of its proper divisors (48487863).

145244553 is a wasteful number, since it uses less digits than its factorization.

145244553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18255.

The product of its digits is 48000, while the sum is 33.

The square root of 145244553 is about 12051.7448114371. The cubic root of 145244553 is about 525.6539732399.

The spelling of 145244553 in words is "one hundred forty-five million, two hundred forty-four thousand, five hundred fifty-three".