155151 has 6 divisors (see below), whose sum is σ = 224120. Its totient is φ = 103428.

The previous prime is 155137. The next prime is 155153. The reversal of 155151 is 151551.

It is not a de Polignac number, because 155151 - 2⁵ = 155119 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 (155153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8611 + ... + 8628.

2¹⁵⁵¹⁵¹ is an apocalyptic number.

155151 is a deficient number, since it is larger than the sum of its proper divisors (68969).

155151 is a wasteful number, since it uses less digits than its factorization.

155151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17245 (or 17242 counting only the distinct ones).

The product of its digits is 125, while the sum is 18.

The square root of 155151 is about 393.8921172098. The cubic root of 155151 is about 53.7342914254.

Subtracting from 155151 its reverse (151551), we obtain a square (3600 = 60²).

The spelling of 155151 in words is "one hundred fifty-five thousand, one hundred fifty-one".