118143407 has 2 divisors, whose sum is σ = 118143408. Its totient is φ = 118143406.

The previous prime is 118143373. The next prime is 118143439. The reversal of 118143407 is 704341811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118143407 - 2¹² = 118139311 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118143407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118143497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59071703 + 59071704.

It is an arithmetic number, because the mean of its divisors is an integer number (59071704).

Almost surely, 2^118143407 is an apocalyptic number.

118143407 is a deficient number, since it is larger than the sum of its proper divisors (1).

118143407 is an equidigital number, since it uses as much as digits as its factorization.

118143407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 118143407 is about 10869.3793291061. The cubic root of 118143407 is about 490.6854311380.

It can be divided in two parts, 11 and 8143407, that added together give a palindrome (8143418).

The spelling of 118143407 in words is "one hundred eighteen million, one hundred forty-three thousand, four hundred seven".