155159105 has 4 divisors (see below), whose sum is σ = 186190932. Its totient is φ = 124127280.

The previous prime is 155159101. The next prime is 155159107. The reversal of 155159105 is 501951551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501951551 = 2843 ⋅176557.

It can be written as a sum of positive squares in 2 ways, for example, as 66064384 + 89094721 = 8128^2 + 9439^2 .

It is not a de Polignac number, because 155159105 - 2² = 155159101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155159101) 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 in 3 ways as a sum of consecutive naturals, for example, 15515906 + ... + 15515915.

It is an arithmetic number, because the mean of its divisors is an integer number (46547733).

Almost surely, 2^155159105 is an apocalyptic number.

It is an amenable number.

155159105 is a deficient number, since it is larger than the sum of its proper divisors (31031827).

155159105 is an equidigital number, since it uses as much as digits as its factorization.

155159105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31031826.

The product of its (nonzero) digits is 5625, while the sum is 32.

The square root of 155159105 is about 12456.2877696367. The cubic root of 155159105 is about 537.3522709209.

The spelling of 155159105 in words is "one hundred fifty-five million, one hundred fifty-nine thousand, one hundred five".