151646401 has 2 divisors, whose sum is σ = 151646402. Its totient is φ = 151646400.

The previous prime is 151646381. The next prime is 151646459. The reversal of 151646401 is 104646151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96530625 + 55115776 = 9825^2 + 7424^2 .

It is a cyclic number.

It is not a de Polignac number, because 151646401 - 2¹⁹ = 151122113 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151646401.

It is not a weakly prime, because it can be changed into another prime (151646491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75823200 + 75823201.

It is an arithmetic number, because the mean of its divisors is an integer number (75823201).

Almost surely, 2^151646401 is an apocalyptic number.

It is an amenable number.

151646401 is a deficient number, since it is larger than the sum of its proper divisors (1).

151646401 is an equidigital number, since it uses as much as digits as its factorization.

151646401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 151646401 is about 12314.4793231383. The cubic root of 151646401 is about 533.2661732706.

The spelling of 151646401 in words is "one hundred fifty-one million, six hundred forty-six thousand, four hundred one".