1994114991 has 16 divisors (see below), whose sum is σ = 2971277568. Its totient is φ = 1179076800.

The previous prime is 1994114971. The next prime is 1994115029.

1994114991 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1994114991 - 2¹³ = 1994106799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1994114991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994114951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735571 + ... + 738276.

It is an arithmetic number, because the mean of its divisors is an integer number (185704848).

Almost surely, 2^1994114991 is an apocalyptic number.

1994114991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1994114991 is a deficient number, since it is larger than the sum of its proper divisors (977162577).

1994114991 is a wasteful number, since it uses less digits than its factorization.

1994114991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473902.

The product of its digits is 104976, while the sum is 48.

The square root of 1994114991 is about 44655.5146762413. The cubic root of 1994114991 is about 1258.6840613659.

It can be divided in two parts, 199411 and 4991, that added together give a palindrome (204402).

The spelling of 1994114991 in words is "one billion, nine hundred ninety-four million, one hundred fourteen thousand, nine hundred ninety-one".