45279169 has 4 divisors (see below), whose sum is σ = 48762196. Its totient is φ = 41796144.

The previous prime is 45279167. The next prime is 45279173. The reversal of 45279169 is 96197254.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2873025 + 42406144 = 1695^2 + 6512^2 .

It is not a de Polignac number, because 45279169 - 2¹ = 45279167 is a prime.

It is a super-2 number, since 2×45279169² = 4100406290661122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45279167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1741494 + ... + 1741519.

It is an arithmetic number, because the mean of its divisors is an integer number (12190549).

Almost surely, 2^45279169 is an apocalyptic number.

It is an amenable number.

45279169 is a deficient number, since it is larger than the sum of its proper divisors (3483027).

45279169 is a wasteful number, since it uses less digits than its factorization.

45279169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483026.

The product of its digits is 136080, while the sum is 43.

The square root of 45279169 is about 6728.9797889427. The cubic root of 45279169 is about 356.4233511933.

The spelling of 45279169 in words is "forty-five million, two hundred seventy-nine thousand, one hundred sixty-nine".