45123207 has 8 divisors (see below), whose sum is σ = 60476784. Its totient is φ = 29925888.

The previous prime is 45123191. The next prime is 45123251. The reversal of 45123207 is 70232154.

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

It is not a de Polignac number, because 45123207 - 2⁴ = 45123191 is a prime.

It is a super-2 number, since 2×45123207² = 4072207619929698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45123007) 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, 38388 + ... + 39545.

It is an arithmetic number, because the mean of its divisors is an integer number (7559598).

Almost surely, 2^45123207 is an apocalyptic number.

45123207 is a deficient number, since it is larger than the sum of its proper divisors (15353577).

45123207 is a wasteful number, since it uses less digits than its factorization.

45123207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78129.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 45123207 is about 6717.3809628456. The cubic root of 45123207 is about 356.0136525295.

The spelling of 45123207 in words is "forty-five million, one hundred twenty-three thousand, two hundred seven".