155146 has 4 divisors (see below), whose sum is σ = 232722. Its totient is φ = 77572.

The previous prime is 155137. The next prime is 155153. The reversal of 155146 is 641551.

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

It can be written as a sum of positive squares in only one way, i.e., 87025 + 68121 = 295^2 + 261^2 .

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38785 + ... + 38788.

2¹⁵⁵¹⁴⁶ is an apocalyptic number.

155146 is a deficient number, since it is larger than the sum of its proper divisors (77576).

155146 is an equidigital number, since it uses as much as digits as its factorization.

155146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77575.

The product of its digits is 600, while the sum is 22.

The square root of 155146 is about 393.8857702431. The cubic root of 155146 is about 53.7337141935.

Adding to 155146 its reverse (641551), we get a palindrome (796697).

The spelling of 155146 in words is "one hundred fifty-five thousand, one hundred forty-six".