1101971964 has 48 divisors (see below), whose sum is σ = 2631154176. Its totient is φ = 358800000.

The previous prime is 1101971953. The next prime is 1101971987. The reversal of 1101971964 is 4691791011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337339 + ... + 340589.

It is an arithmetic number, because the mean of its divisors is an integer number (54815712).

Almost surely, 2^1101971964 is an apocalyptic number.

It is an amenable number.

1101971964 is an abundant number, since it is smaller than the sum of its proper divisors (1529182212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101971964 is a wasteful number, since it uses less digits than its factorization.

1101971964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906 (or 3904 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 1101971964 is about 33195.9630678190. The cubic root of 1101971964 is about 1032.8966015234.

The spelling of 1101971964 in words is "one billion, one hundred one million, nine hundred seventy-one thousand, nine hundred sixty-four".