1945654113 has 8 divisors (see below), whose sum is σ = 2793759808. Its totient is φ = 1197325584.

The previous prime is 1945654103. The next prime is 1945654129. The reversal of 1945654113 is 3114565491.

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

It is not a de Polignac number, because 1945654113 - 2⁶ = 1945654049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 49888567 = 1945654113 / (1 + 9 + 4 + 5 + 6 + 5 + 4 + 1 + 1 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1945654103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24944245 + ... + 24944322.

It is an arithmetic number, because the mean of its divisors is an integer number (349219976).

Almost surely, 2^1945654113 is an apocalyptic number.

1945654113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1945654113 is a deficient number, since it is larger than the sum of its proper divisors (848105695).

1945654113 is a wasteful number, since it uses less digits than its factorization.

1945654113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49888583.

The product of its digits is 64800, while the sum is 39.

The square root of 1945654113 is about 44109.5694039287. The cubic root of 1945654113 is about 1248.4041743126.

The spelling of 1945654113 in words is "one billion, nine hundred forty-five million, six hundred fifty-four thousand, one hundred thirteen".