155605141 has 4 divisors (see below), whose sum is σ = 155640492. Its totient is φ = 155569792.

The previous prime is 155605139. The next prime is 155605201. The reversal of 155605141 is 141506551.

It is a happy number.

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 68724100 + 86881041 = 8290^2 + 9321^2 .

It is a cyclic number.

It is not a de Polignac number, because 155605141 - 2¹ = 155605139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155605111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9946 + ... + 20251.

It is an arithmetic number, because the mean of its divisors is an integer number (38910123).

Almost surely, 2^155605141 is an apocalyptic number.

It is an amenable number.

155605141 is a deficient number, since it is larger than the sum of its proper divisors (35351).

155605141 is an equidigital number, since it uses as much as digits as its factorization.

155605141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35350.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 155605141 is about 12474.1789709784. The cubic root of 155605141 is about 537.8666873015.

The spelling of 155605141 in words is "one hundred fifty-five million, six hundred five thousand, one hundred forty-one".