117154949 has 2 divisors, whose sum is σ = 117154950. Its totient is φ = 117154948.

The previous prime is 117154937. The next prime is 117154967. The reversal of 117154949 is 949451711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95902849 + 21252100 = 9793^2 + 4610^2 .

It is a cyclic number.

It is not a de Polignac number, because 117154949 - 2¹² = 117150853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117154649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58577474 + 58577475.

It is an arithmetic number, because the mean of its divisors is an integer number (58577475).

Almost surely, 2^117154949 is an apocalyptic number.

It is an amenable number.

117154949 is a deficient number, since it is larger than the sum of its proper divisors (1).

117154949 is an equidigital number, since it uses as much as digits as its factorization.

117154949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 41.

The square root of 117154949 is about 10823.8139765981. The cubic root of 117154949 is about 489.3131414902.

The spelling of 117154949 in words is "one hundred seventeen million, one hundred fifty-four thousand, nine hundred forty-nine".