150555397 has 2 divisors, whose sum is σ = 150555398. Its totient is φ = 150555396.

The previous prime is 150555389. The next prime is 150555469. The reversal of 150555397 is 793555051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146748996 + 3806401 = 12114^2 + 1951^2 .

It is an emirp because it is prime and its reverse (793555051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150555397 - 2³ = 150555389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150555367) 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, 75277698 + 75277699.

It is an arithmetic number, because the mean of its divisors is an integer number (75277699).

Almost surely, 2^150555397 is an apocalyptic number.

It is an amenable number.

150555397 is a deficient number, since it is larger than the sum of its proper divisors (1).

150555397 is an equidigital number, since it uses as much as digits as its factorization.

150555397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118125, while the sum is 40.

The square root of 150555397 is about 12270.1017518193. The cubic root of 150555397 is about 531.9842517527.

The spelling of 150555397 in words is "one hundred fifty million, five hundred fifty-five thousand, three hundred ninety-seven".