155351 has 4 divisors (see below), whose sum is σ = 177552. Its totient is φ = 133152.

The previous prime is 155333. The next prime is 155371. The reversal of 155351 is 153551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153551 = 97 ⋅1583.

It is a cyclic number.

It is not a de Polignac number, because 155351 - 2¹⁴ = 138967 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 (155371) 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, 11090 + ... + 11103.

It is an arithmetic number, because the mean of its divisors is an integer number (44388).

2¹⁵⁵³⁵¹ is an apocalyptic number.

155351 is a deficient number, since it is larger than the sum of its proper divisors (22201).

155351 is an equidigital number, since it uses as much as digits as its factorization.

155351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22200.

The product of its digits is 375, while the sum is 20.

The square root of 155351 is about 394.1459120681. The cubic root of 155351 is about 53.7573705414.

The spelling of 155351 in words is "one hundred fifty-five thousand, three hundred fifty-one".