145273355 has 4 divisors (see below), whose sum is σ = 174328032. Its totient is φ = 116218680.

The previous prime is 145273351. The next prime is 145273397. The reversal of 145273355 is 553372541.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 145273355 - 2² = 145273351 is a prime.

It is a super-2 number, since 2×145273355² = 42208695345912050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145273351) 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 3 ways as a sum of consecutive naturals, for example, 14527331 + ... + 14527340.

It is an arithmetic number, because the mean of its divisors is an integer number (43582008).

Almost surely, 2^145273355 is an apocalyptic number.

145273355 is a deficient number, since it is larger than the sum of its proper divisors (29054677).

145273355 is an equidigital number, since it uses as much as digits as its factorization.

145273355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29054676.

The product of its digits is 63000, while the sum is 35.

The square root of 145273355 is about 12052.9396829155. The cubic root of 145273355 is about 525.6887166773.

The spelling of 145273355 in words is "one hundred forty-five million, two hundred seventy-three thousand, three hundred fifty-five".