1454691999 has 4 divisors (see below), whose sum is σ = 1939589336. Its totient is φ = 969794664.

The previous prime is 1454691983. The next prime is 1454692027. The reversal of 1454691999 is 9991964541.

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

It is not a de Polignac number, because 1454691999 - 2⁴ = 1454691983 is a prime.

It is a super-2 number, since 2×1454691999² = 4232257623909232002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1454691499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242448664 + ... + 242448669.

It is an arithmetic number, because the mean of its divisors is an integer number (484897334).

Almost surely, 2^1454691999 is an apocalyptic number.

1454691999 is a deficient number, since it is larger than the sum of its proper divisors (484897337).

1454691999 is an equidigital number, since it uses as much as digits as its factorization.

1454691999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484897336.

The product of its digits is 3149280, while the sum is 57.

The square root of 1454691999 is about 38140.4247354431. The cubic root of 1454691999 is about 1133.0707193618.

The spelling of 1454691999 in words is "one billion, four hundred fifty-four million, six hundred ninety-one thousand, nine hundred ninety-nine".