155552141 has 4 divisors (see below), whose sum is σ = 160569984. Its totient is φ = 150534300.

The previous prime is 155552101. The next prime is 155552161. The reversal of 155552141 is 141255551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141255551 = 233 ⋅606247.

It is a cyclic number.

It is not a de Polignac number, because 155552141 - 2¹⁰ = 155551117 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 (155552101) 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, 2508875 + ... + 2508936.

It is an arithmetic number, because the mean of its divisors is an integer number (40142496).

Almost surely, 2^155552141 is an apocalyptic number.

It is an amenable number.

155552141 is a deficient number, since it is larger than the sum of its proper divisors (5017843).

155552141 is an equidigital number, since it uses as much as digits as its factorization.

155552141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017842.

The product of its digits is 5000, while the sum is 29.

The square root of 155552141 is about 12472.0544017415. The cubic root of 155552141 is about 537.8056135448.

The spelling of 155552141 in words is "one hundred fifty-five million, five hundred fifty-two thousand, one hundred forty-one".