45197205127 has 4 divisors (see below), whose sum is σ = 45213483456. Its totient is φ = 45180926800.

The previous prime is 45197205113. The next prime is 45197205197. The reversal of 45197205127 is 72150279154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72150279154 = 2 ⋅36075139577.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45197205127 is a prime.

It is a super-2 number, since 2×45197205127² (a number of 22 digits) 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 (45197205107) 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, 8134999 + ... + 8140552.

It is an arithmetic number, because the mean of its divisors is an integer number (11303370864).

Almost surely, 2^45197205127 is an apocalyptic number.

45197205127 is a deficient number, since it is larger than the sum of its proper divisors (16278329).

45197205127 is a wasteful number, since it uses less digits than its factorization.

45197205127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16278328.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 45197205127 in words is "forty-five billion, one hundred ninety-seven million, two hundred five thousand, one hundred twenty-seven".