1946807121 has 16 divisors (see below), whose sum is σ = 2972985344. Its totient is φ = 1110052944.

The previous prime is 1946807119. The next prime is 1946807167. The reversal of 1946807121 is 1217086491.

It is not a de Polignac number, because 1946807121 - 2¹ = 1946807119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1946807121.

It is not an unprimeable number, because it can be changed into a prime (1946808121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90391 + ... + 109836.

It is an arithmetic number, because the mean of its divisors is an integer number (185811584).

Almost surely, 2^1946807121 is an apocalyptic number.

It is an amenable number.

1946807121 is a deficient number, since it is larger than the sum of its proper divisors (1026178223).

1946807121 is a wasteful number, since it uses less digits than its factorization.

1946807121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200700.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1946807121 is about 44122.6372851850. The cubic root of 1946807121 is about 1248.6507299135.

The spelling of 1946807121 in words is "one billion, nine hundred forty-six million, eight hundred seven thousand, one hundred twenty-one".