145277283 has 4 divisors (see below), whose sum is σ = 193703048. Its totient is φ = 96851520.

The previous prime is 145277261. The next prime is 145277303. The reversal of 145277283 is 382772541.

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

It is not a de Polignac number, because 145277283 - 2¹⁸ = 145015139 is a prime.

It is a super-2 number, since 2×145277283² = 42210977911724178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145277213) 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, 24212878 + ... + 24212883.

It is an arithmetic number, because the mean of its divisors is an integer number (48425762).

Almost surely, 2^145277283 is an apocalyptic number.

145277283 is a deficient number, since it is larger than the sum of its proper divisors (48425765).

145277283 is an equidigital number, since it uses as much as digits as its factorization.

145277283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48425764.

The product of its digits is 94080, while the sum is 39.

The square root of 145277283 is about 12053.1026296137. The cubic root of 145277283 is about 525.6934546112.

The spelling of 145277283 in words is "one hundred forty-five million, two hundred seventy-seven thousand, two hundred eighty-three".