117405140 has 24 divisors (see below), whose sum is σ = 252565992. Its totient is φ = 45816320.

The previous prime is 117405131. The next prime is 117405149. The reversal of 117405140 is 41504711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (117405131) and next prime (117405149).

It can be written as a sum of positive squares in 4 ways, for example, as 29584 + 117375556 = 172^2 + 10834^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117405149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70769 + ... + 72408.

It is an arithmetic number, because the mean of its divisors is an integer number (10523583).

Almost surely, 2^117405140 is an apocalyptic number.

117405140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117405140 is an abundant number, since it is smaller than the sum of its proper divisors (135160852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117405140 is a wasteful number, since it uses less digits than its factorization.

117405140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143227 (or 143225 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 117405140 is about 10835.3652453436. The cubic root of 117405140 is about 489.6612124346.

Adding to 117405140 its reverse (41504711), we get a palindrome (158909851).

The spelling of 117405140 in words is "one hundred seventeen million, four hundred five thousand, one hundred forty".