155153065 has 4 divisors (see below), whose sum is σ = 186183684. Its totient is φ = 124122448.

The previous prime is 155153029. The next prime is 155153081. The reversal of 155153065 is 560351551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101848464 + 53304601 = 10092^2 + 7301^2 .

It is a cyclic number.

It is not a de Polignac number, because 155153065 - 2¹⁵ = 155120297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15515302 + ... + 15515311.

It is an arithmetic number, because the mean of its divisors is an integer number (46545921).

Almost surely, 2^155153065 is an apocalyptic number.

It is an amenable number.

155153065 is a deficient number, since it is larger than the sum of its proper divisors (31030619).

155153065 is an equidigital number, since it uses as much as digits as its factorization.

155153065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31030618.

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 155153065 is about 12456.0453194423. The cubic root of 155153065 is about 537.3452981862.

The spelling of 155153065 in words is "one hundred fifty-five million, one hundred fifty-three thousand, sixty-five".