118075978 has 4 divisors (see below), whose sum is σ = 177113970. Its totient is φ = 59037988.

The previous prime is 118075973. The next prime is 118075987. The reversal of 118075978 is 879570811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117787609 + 288369 = 10853^2 + 537^2 .

It is not an unprimeable number, because it can be changed into a prime (118075973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29518993 + ... + 29518996.

Almost surely, 2^118075978 is an apocalyptic number.

118075978 is a deficient number, since it is larger than the sum of its proper divisors (59037992).

118075978 is an equidigital number, since it uses as much as digits as its factorization.

118075978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59037991.

The product of its (nonzero) digits is 141120, while the sum is 46.

The square root of 118075978 is about 10866.2770993565. The cubic root of 118075978 is about 490.5920623377.

The spelling of 118075978 in words is "one hundred eighteen million, seventy-five thousand, nine hundred seventy-eight".