45279691 has 4 divisors (see below), whose sum is σ = 45636352. Its totient is φ = 44923032.

The previous prime is 45279677. The next prime is 45279713. The reversal of 45279691 is 19697254.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 45279691 - 2¹¹ = 45277643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45279631) 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, 178140 + ... + 178393.

It is an arithmetic number, because the mean of its divisors is an integer number (11409088).

Almost surely, 2^45279691 is an apocalyptic number.

45279691 is a deficient number, since it is larger than the sum of its proper divisors (356661).

45279691 is a wasteful number, since it uses less digits than its factorization.

45279691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356660.

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

The square root of 45279691 is about 6729.0185762858. The cubic root of 45279691 is about 356.4247208612.

The spelling of 45279691 in words is "forty-five million, two hundred seventy-nine thousand, six hundred ninety-one".