1321073954 has 32 divisors (see below), whose sum is σ = 2095441920. Its totient is φ = 623422800.

The previous prime is 1321073947. The next prime is 1321073969. The reversal of 1321073954 is 4593701231.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270967 + ... + 1272005.

It is an arithmetic number, because the mean of its divisors is an integer number (65482560).

Almost surely, 2^1321073954 is an apocalyptic number.

1321073954 is a deficient number, since it is larger than the sum of its proper divisors (774367966).

1321073954 is a wasteful number, since it uses less digits than its factorization.

1321073954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1321073954 is about 36346.5810496668. The cubic root of 1321073954 is about 1097.2587263032.

The spelling of 1321073954 in words is "one billion, three hundred twenty-one million, seventy-three thousand, nine hundred fifty-four".