155105413 has 2 divisors, whose sum is σ = 155105414. Its totient is φ = 155105412.

The previous prime is 155105387. The next prime is 155105437. The reversal of 155105413 is 314501551.

It is a happy number.

155105413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140612164 + 14493249 = 11858^2 + 3807^2 .

It is a cyclic number.

It is not a de Polignac number, because 155105413 - 2¹³ = 155097221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155105453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77552706 + 77552707.

It is an arithmetic number, because the mean of its divisors is an integer number (77552707).

Almost surely, 2^155105413 is an apocalyptic number.

It is an amenable number.

155105413 is a deficient number, since it is larger than the sum of its proper divisors (1).

155105413 is an equidigital number, since it uses as much as digits as its factorization.

155105413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 155105413 is about 12454.1323664075. The cubic root of 155105413 is about 537.2902811186.

Adding to 155105413 its reverse (314501551), we get a palindrome (469606964).

The spelling of 155105413 in words is "one hundred fifty-five million, one hundred five thousand, four hundred thirteen".