118980457 has 2 divisors, whose sum is σ = 118980458. Its totient is φ = 118980456.

The previous prime is 118980443. The next prime is 118980487. The reversal of 118980457 is 754089811.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90079081 + 28901376 = 9491^2 + 5376^2 .

It is an emirp because it is prime and its reverse (754089811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118980457 is a prime.

It is not a weakly prime, because it can be changed into another prime (118980427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59490228 + 59490229.

It is an arithmetic number, because the mean of its divisors is an integer number (59490229).

Almost surely, 2^118980457 is an apocalyptic number.

It is an amenable number.

118980457 is a deficient number, since it is larger than the sum of its proper divisors (1).

118980457 is an equidigital number, since it uses as much as digits as its factorization.

118980457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 118980457 is about 10907.8163259197. The cubic root of 118980457 is about 491.8415459617.

The spelling of 118980457 in words is "one hundred eighteen million, nine hundred eighty thousand, four hundred fifty-seven".