155941567 has 2 divisors, whose sum is σ = 155941568. Its totient is φ = 155941566.

The previous prime is 155941549. The next prime is 155941657. The reversal of 155941567 is 765149551.

Together with next prime (155941657) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155941567 - 2¹¹ = 155939519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155941507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77970783 + 77970784.

It is an arithmetic number, because the mean of its divisors is an integer number (77970784).

Almost surely, 2^155941567 is an apocalyptic number.

155941567 is a deficient number, since it is larger than the sum of its proper divisors (1).

155941567 is an equidigital number, since it uses as much as digits as its factorization.

155941567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 43.

The square root of 155941567 is about 12487.6565856048. The cubic root of 155941567 is about 538.2540397247.

It can be divided in two parts, 15594 and 1567, that added together give a square (17161 = 131²).

The spelling of 155941567 in words is "one hundred fifty-five million, nine hundred forty-one thousand, five hundred sixty-seven".