155332601 has 2 divisors, whose sum is σ = 155332602. Its totient is φ = 155332600.

The previous prime is 155332589. The next prime is 155332609. The reversal of 155332601 is 106233551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148962025 + 6370576 = 12205^2 + 2524^2 .

It is an emirp because it is prime and its reverse (106233551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155332601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155332609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77666300 + 77666301.

It is an arithmetic number, because the mean of its divisors is an integer number (77666301).

Almost surely, 2^155332601 is an apocalyptic number.

It is an amenable number.

155332601 is a deficient number, since it is larger than the sum of its proper divisors (1).

155332601 is an equidigital number, since it uses as much as digits as its factorization.

155332601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 155332601 is about 12463.2500175516. The cubic root of 155332601 is about 537.5524820577.

The spelling of 155332601 in words is "one hundred fifty-five million, three hundred thirty-two thousand, six hundred one".