117544442 has 4 divisors (see below), whose sum is σ = 176316666. Its totient is φ = 58772220.

The previous prime is 117544439. The next prime is 117544447. The reversal of 117544442 is 244445711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244445711 = 461 ⋅530251.

It can be written as a sum of positive squares in only one way, i.e., 117527281 + 17161 = 10841^2 + 131^2 .

It is a junction number, because it is equal to n+sod(n) for n = 117544399 and 117544408.

It is not an unprimeable number, because it can be changed into a prime (117544447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29386109 + ... + 29386112.

Almost surely, 2^117544442 is an apocalyptic number.

117544442 is a deficient number, since it is larger than the sum of its proper divisors (58772224).

117544442 is an equidigital number, since it uses as much as digits as its factorization.

117544442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58772223.

The product of its digits is 17920, while the sum is 32.

The square root of 117544442 is about 10841.7914571347. The cubic root of 117544442 is about 489.8547980149.

The spelling of 117544442 in words is "one hundred seventeen million, five hundred forty-four thousand, four hundred forty-two".