1117972654 has 16 divisors (see below), whose sum is σ = 1822164480. Its totient is φ = 512482680.

The previous prime is 1117972643. The next prime is 1117972663. The reversal of 1117972654 is 4562797111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117972654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473344 + ... + 475699.

It is an arithmetic number, because the mean of its divisors is an integer number (113885280).

Almost surely, 2^1117972654 is an apocalyptic number.

1117972654 is a deficient number, since it is larger than the sum of its proper divisors (704191826).

1117972654 is a wasteful number, since it uses less digits than its factorization.

1117972654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949095.

The product of its digits is 105840, while the sum is 43.

The square root of 1117972654 is about 33436.0980678069. The cubic root of 1117972654 is about 1037.8718358298.

The spelling of 1117972654 in words is "one billion, one hundred seventeen million, nine hundred seventy-two thousand, six hundred fifty-four".