1146423451 has 2 divisors, whose sum is σ = 1146423452. Its totient is φ = 1146423450.

The previous prime is 1146423449. The next prime is 1146423479. The reversal of 1146423451 is 1543246411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1146423451 - 2¹ = 1146423449 is a prime.

Together with 1146423449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1146423401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573211725 + 573211726.

It is an arithmetic number, because the mean of its divisors is an integer number (573211726).

Almost surely, 2^1146423451 is an apocalyptic number.

1146423451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146423451 is an equidigital number, since it uses as much as digits as its factorization.

1146423451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 1146423451 is about 33858.8755129287. The cubic root of 1146423451 is about 1046.6023055456.

Adding to 1146423451 its reverse (1543246411), we get a palindrome (2689669862).

The spelling of 1146423451 in words is "one billion, one hundred forty-six million, four hundred twenty-three thousand, four hundred fifty-one".