1321970054 has 16 divisors (see below), whose sum is σ = 1991349360. Its totient is φ = 658193760.

The previous prime is 1321970053. The next prime is 1321970141. The reversal of 1321970054 is 4500791231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321970054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321970053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564017 + ... + 566355.

It is an arithmetic number, because the mean of its divisors is an integer number (124459335).

Almost surely, 2^1321970054 is an apocalyptic number.

1321970054 is a deficient number, since it is larger than the sum of its proper divisors (669379306).

1321970054 is a wasteful number, since it uses less digits than its factorization.

1321970054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1321970054 is about 36358.9061166587. The cubic root of 1321970054 is about 1097.5067647288.

The spelling of 1321970054 in words is "one billion, three hundred twenty-one million, nine hundred seventy thousand, fifty-four".