1029994651 has 6 divisors (see below), whose sum is σ = 1198157100. Its totient is φ = 882852516.

The previous prime is 1029994619. The next prime is 1029994663. The reversal of 1029994651 is 1564999201.

It is a happy number.

It is not a de Polignac number, because 1029994651 - 2⁵ = 1029994619 is a prime.

It is a super-2 number, since 2×1029994651² = 2121777962177223602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1029994681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10510101 + ... + 10510198.

It is an arithmetic number, because the mean of its divisors is an integer number (199692850).

Almost surely, 2^1029994651 is an apocalyptic number.

1029994651 is a deficient number, since it is larger than the sum of its proper divisors (168162449).

1029994651 is an equidigital number, since it uses as much as digits as its factorization.

1029994651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21020313 (or 21020306 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 1029994651 is about 32093.5297373162. The cubic root of 1029994651 is about 1009.8998858386.

The spelling of 1029994651 in words is "one billion, twenty-nine million, nine hundred ninety-four thousand, six hundred fifty-one".