1117623551 has 8 divisors (see below), whose sum is σ = 1248963408. Its totient is φ = 991240000.

The previous prime is 1117623527. The next prime is 1117623569. The reversal of 1117623551 is 1553267111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1117623551 - 2¹⁴ = 1117607167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117623581) 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, 1238600 + ... + 1239501.

It is an arithmetic number, because the mean of its divisors is an integer number (156120426).

Almost surely, 2^1117623551 is an apocalyptic number.

1117623551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1117623551 is a deficient number, since it is larger than the sum of its proper divisors (131339857).

1117623551 is a wasteful number, since it uses less digits than its factorization.

1117623551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478153.

The product of its digits is 6300, while the sum is 32.

The square root of 1117623551 is about 33430.8772095499. The cubic root of 1117623551 is about 1037.7637944597.

The spelling of 1117623551 in words is "one billion, one hundred seventeen million, six hundred twenty-three thousand, five hundred fifty-one".