1012144429 has 2 divisors, whose sum is σ = 1012144430. Its totient is φ = 1012144428.

The previous prime is 1012144387. The next prime is 1012144481. The reversal of 1012144429 is 9244412101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1005524100 + 6620329 = 31710^2 + 2573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012144429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012144397 and 1012144406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012144499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506072214 + 506072215.

It is an arithmetic number, because the mean of its divisors is an integer number (506072215).

Almost surely, 2^1012144429 is an apocalyptic number.

It is an amenable number.

1012144429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012144429 is an equidigital number, since it uses as much as digits as its factorization.

1012144429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1012144429 is about 31814.2174035446. The cubic root of 1012144429 is about 1004.0318652156.

The spelling of 1012144429 in words is "one billion, twelve million, one hundred forty-four thousand, four hundred twenty-nine".