155305130 has 16 divisors (see below), whose sum is σ = 286368264. Its totient is φ = 60606720.

The previous prime is 155305127. The next prime is 155305141. The reversal of 155305130 is 31503551.

It can be written as a sum of positive squares in 4 ways, for example, as 83411689 + 71893441 = 9133^2 + 8479^2 .

It is a junction number, because it is equal to n+sod(n) for n = 155305096 and 155305105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188987 + ... + 189806.

Almost surely, 2^155305130 is an apocalyptic number.

155305130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155305130 is a deficient number, since it is larger than the sum of its proper divisors (131063134).

155305130 is a wasteful number, since it uses less digits than its factorization.

155305130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378841.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 155305130 is about 12462.1478887068. The cubic root of 155305130 is about 537.5207909751.

Adding to 155305130 its reverse (31503551), we get a palindrome (186808681).

The spelling of 155305130 in words is "one hundred fifty-five million, three hundred five thousand, one hundred thirty".