45212138207 has 4 divisors (see below), whose sum is σ = 45831482640. Its totient is φ = 44592793776.

The previous prime is 45212138141. The next prime is 45212138267. The reversal of 45212138207 is 70283121254.

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 45212138207 - 2¹⁰ = 45212137183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45212138267) 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, 309672107 + ... + 309672252.

It is an arithmetic number, because the mean of its divisors is an integer number (11457870660).

Almost surely, 2^45212138207 is an apocalyptic number.

45212138207 is a deficient number, since it is larger than the sum of its proper divisors (619344433).

45212138207 is an equidigital number, since it uses as much as digits as its factorization.

45212138207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619344432.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 45212138207 in words is "forty-five billion, two hundred twelve million, one hundred thirty-eight thousand, two hundred seven".