155357941 has 2 divisors, whose sum is σ = 155357942. Its totient is φ = 155357940.

The previous prime is 155357921. The next prime is 155357947. The reversal of 155357941 is 149753551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147258225 + 8099716 = 12135^2 + 2846^2 .

It is an emirp because it is prime and its reverse (149753551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155357941 - 2²⁷ = 21140213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155357894 and 155357903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155357947) 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, 77678970 + 77678971.

It is an arithmetic number, because the mean of its divisors is an integer number (77678971).

Almost surely, 2^155357941 is an apocalyptic number.

It is an amenable number.

155357941 is a deficient number, since it is larger than the sum of its proper divisors (1).

155357941 is an equidigital number, since it uses as much as digits as its factorization.

155357941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 40.

The square root of 155357941 is about 12464.2665648645. The cubic root of 155357941 is about 537.5817114643.

The spelling of 155357941 in words is "one hundred fifty-five million, three hundred fifty-seven thousand, nine hundred forty-one".