155400353 has 2 divisors, whose sum is σ = 155400354. Its totient is φ = 155400352.

The previous prime is 155400337. The next prime is 155400359. The reversal of 155400353 is 353004551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155326369 + 73984 = 12463^2 + 272^2 .

It is an emirp because it is prime and its reverse (353004551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155400353 - 2⁴ = 155400337 is a prime.

It is not a weakly prime, because it can be changed into another prime (155400359) 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, 77700176 + 77700177.

It is an arithmetic number, because the mean of its divisors is an integer number (77700177).

Almost surely, 2^155400353 is an apocalyptic number.

It is an amenable number.

155400353 is a deficient number, since it is larger than the sum of its proper divisors (1).

155400353 is an equidigital number, since it uses as much as digits as its factorization.

155400353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 155400353 is about 12465.9677923537. The cubic root of 155400353 is about 537.6306261211.

The spelling of 155400353 in words is "one hundred fifty-five million, four hundred thousand, three hundred fifty-three".