117429731 has 8 divisors (see below), whose sum is σ = 118500000. Its totient is φ = 116363520.

The previous prime is 117429707. The next prime is 117429737. The reversal of 117429731 is 137924711.

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 117429731 - 2⁶ = 117429667 is a prime.

It is a super-2 number, since 2×117429731² = 27579483445464722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117429691 and 117429700.

It is not an unprimeable number, because it can be changed into a prime (117429737) 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, 93395 + ... + 94643.

It is an arithmetic number, because the mean of its divisors is an integer number (14812500).

Almost surely, 2^117429731 is an apocalyptic number.

117429731 is a deficient number, since it is larger than the sum of its proper divisors (1070269).

117429731 is a wasteful number, since it uses less digits than its factorization.

117429731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029.

The product of its digits is 10584, while the sum is 35.

The square root of 117429731 is about 10836.4999423246. The cubic root of 117429731 is about 489.6953972477.

The spelling of 117429731 in words is "one hundred seventeen million, four hundred twenty-nine thousand, seven hundred thirty-one".