116742261 has 4 divisors (see below), whose sum is σ = 155656352. Its totient is φ = 77828172.

The previous prime is 116742259. The next prime is 116742277. The reversal of 116742261 is 162247611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 116742261 - 2¹ = 116742259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116742361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19457041 + ... + 19457046.

It is an arithmetic number, because the mean of its divisors is an integer number (38914088).

Almost surely, 2^116742261 is an apocalyptic number.

It is an amenable number.

116742261 is a deficient number, since it is larger than the sum of its proper divisors (38914091).

116742261 is an equidigital number, since it uses as much as digits as its factorization.

116742261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38914090.

The product of its digits is 4032, while the sum is 30.

The square root of 116742261 is about 10804.7332683412. The cubic root of 116742261 is about 488.7379168612.

Adding to 116742261 its reverse (162247611), we get a palindrome (278989872).

The spelling of 116742261 in words is "one hundred sixteen million, seven hundred forty-two thousand, two hundred sixty-one".