4545909146 has 4 divisors (see below), whose sum is σ = 6818863722. Its totient is φ = 2272954572.

The previous prime is 4545909139. The next prime is 4545909149. The reversal of 4545909146 is 6419095454.

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

It can be written as a sum of positive squares in only one way, i.e., 3161250625 + 1384658521 = 56225^2 + 37211^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4545909146.

It is not an unprimeable number, because it can be changed into a prime (4545909149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136477285 + ... + 1136477288.

Almost surely, 2^4545909146 is an apocalyptic number.

4545909146 is a deficient number, since it is larger than the sum of its proper divisors (2272954576).

4545909146 is a wasteful number, since it uses less digits than its factorization.

4545909146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272954575.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 4545909146 is about 67423.3575699104. The cubic root of 4545909146 is about 1656.5590340049.

The spelling of 4545909146 in words is "four billion, five hundred forty-five million, nine hundred nine thousand, one hundred forty-six".