155101563 has 6 divisors (see below), whose sum is σ = 224035604. Its totient is φ = 103401036.

The previous prime is 155101561. The next prime is 155101577. The reversal of 155101563 is 365101551.

It is not a de Polignac number, because 155101563 - 2¹ = 155101561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155101561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8616745 + ... + 8616762.

Almost surely, 2^155101563 is an apocalyptic number.

155101563 is a deficient number, since it is larger than the sum of its proper divisors (68934041).

155101563 is a wasteful number, since it uses less digits than its factorization.

155101563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17233513 (or 17233510 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 155101563 is about 12453.9777982779. The cubic root of 155101563 is about 537.2858355727.

The spelling of 155101563 in words is "one hundred fifty-five million, one hundred one thousand, five hundred sixty-three".