117829157 has 2 divisors, whose sum is σ = 117829158. Its totient is φ = 117829156.

The previous prime is 117829133. The next prime is 117829181. The reversal of 117829157 is 751928711.

It is a balanced prime because it is at equal distance from previous prime (117829133) and next prime (117829181).

It can be written as a sum of positive squares in only one way, i.e., 87347716 + 30481441 = 9346^2 + 5521^2 .

It is an emirp because it is prime and its reverse (751928711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117829157 - 2¹⁶ = 117763621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117829757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58914578 + 58914579.

It is an arithmetic number, because the mean of its divisors is an integer number (58914579).

Almost surely, 2^117829157 is an apocalyptic number.

It is an amenable number.

117829157 is a deficient number, since it is larger than the sum of its proper divisors (1).

117829157 is an equidigital number, since it uses as much as digits as its factorization.

117829157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 41.

The square root of 117829157 is about 10854.9139563610. The cubic root of 117829157 is about 490.2499862827.

The spelling of 117829157 in words is "one hundred seventeen million, eight hundred twenty-nine thousand, one hundred fifty-seven".