155381351 has 2 divisors, whose sum is σ = 155381352. Its totient is φ = 155381350.

The previous prime is 155381341. The next prime is 155381363. The reversal of 155381351 is 153183551.

It is a weak prime.

It is an emirp because it is prime and its reverse (153183551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155381351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155381341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77690675 + 77690676.

It is an arithmetic number, because the mean of its divisors is an integer number (77690676).

Almost surely, 2^155381351 is an apocalyptic number.

155381351 is a deficient number, since it is larger than the sum of its proper divisors (1).

155381351 is an equidigital number, since it uses as much as digits as its factorization.

155381351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 32.

The square root of 155381351 is about 12465.2056140282. The cubic root of 155381351 is about 537.6087118131.

The spelling of 155381351 in words is "one hundred fifty-five million, three hundred eighty-one thousand, three hundred fifty-one".