145277605 has 8 divisors (see below), whose sum is σ = 190181664. Its totient is φ = 105656400.

The previous prime is 145277599. The next prime is 145277609. The reversal of 145277605 is 506772541.

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

It is a de Polignac number, because none of the positive numbers 2^k-145277605 is a prime.

It is a super-2 number, since 2×145277605² = 42211165029072050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145277609) 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, 1320651 + ... + 1320760.

It is an arithmetic number, because the mean of its divisors is an integer number (23772708).

Almost surely, 2^145277605 is an apocalyptic number.

It is an amenable number.

145277605 is a deficient number, since it is larger than the sum of its proper divisors (44904059).

145277605 is a wasteful number, since it uses less digits than its factorization.

145277605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641427.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 145277605 is about 12053.1159871628. The cubic root of 145277605 is about 525.6938430022.

The spelling of 145277605 in words is "one hundred forty-five million, two hundred seventy-seven thousand, six hundred five".