117434661 has 8 divisors (see below), whose sum is σ = 157029600. Its totient is φ = 78064752.

The previous prime is 117434651. The next prime is 117434671. The reversal of 117434661 is 166434711.

It is an interprime number because it is at equal distance from previous prime (117434651) and next prime (117434671).

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

It is not a de Polignac number, because 117434661 - 2¹⁹ = 116910373 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117434641) 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, 55035 + ... + 57128.

It is an arithmetic number, because the mean of its divisors is an integer number (19628700).

Almost surely, 2^117434661 is an apocalyptic number.

It is an amenable number.

117434661 is a deficient number, since it is larger than the sum of its proper divisors (39594939).

117434661 is a wasteful number, since it uses less digits than its factorization.

117434661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112515.

The product of its digits is 12096, while the sum is 33.

The square root of 117434661 is about 10836.7274119081. The cubic root of 117434661 is about 489.7022500396.

Subtracting 117434661 from its reverse (166434711), we obtain a triangular number (49000050 = T₉₈₉₉).

It can be divided in two parts, 117 and 434661, that added together give a triangular number (434778 = T₉₃₂).

The spelling of 117434661 in words is "one hundred seventeen million, four hundred thirty-four thousand, six hundred sixty-one".