1530155 has 16 divisors (see below), whose sum is σ = 2052864. Its totient is φ = 1085280.

The previous prime is 1530149. The next prime is 1530157. The reversal of 1530155 is 5510351.

1530155 = T₁₄₄ + T₁₄₅ + ... + T₂₂₉.

It is a happy number.

1530155 is nontrivially palindromic in base 9.

It is not a de Polignac number, because 1530155 - 2⁶ = 1530091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1530157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2042 + ... + 2688.

It is an arithmetic number, because the mean of its divisors is an integer number (128304).

2^1530155 is an apocalyptic number.

1530155 is a deficient number, since it is larger than the sum of its proper divisors (522709).

1530155 is a wasteful number, since it uses less digits than its factorization.

1530155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706.

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

The square root of 1530155 is about 1236.9943411350. The cubic root of 1530155 is about 115.2334263132.

The spelling of 1530155 in words is "one million, five hundred thirty thousand, one hundred fifty-five".