146172451 has 2 divisors, whose sum is σ = 146172452. Its totient is φ = 146172450.

The previous prime is 146172449. The next prime is 146172469. The reversal of 146172451 is 154271641.

It is a weak prime.

It is an emirp because it is prime and its reverse (154271641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146172451 - 2¹ = 146172449 is a prime.

Together with 146172449, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (146172431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73086225 + 73086226.

It is an arithmetic number, because the mean of its divisors is an integer number (73086226).

Almost surely, 2^146172451 is an apocalyptic number.

146172451 is a deficient number, since it is larger than the sum of its proper divisors (1).

146172451 is an equidigital number, since it uses as much as digits as its factorization.

146172451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 146172451 is about 12090.1799407618. The cubic root of 146172451 is about 526.7709818920.

The spelling of 146172451 in words is "one hundred forty-six million, one hundred seventy-two thousand, four hundred fifty-one".