155320430 has 16 divisors (see below), whose sum is σ = 285526080. Its totient is φ = 60806112.

The previous prime is 155320409. The next prime is 155320441. The reversal of 155320430 is 34023551.

It is a junction number, because it is equal to n+sod(n) for n = 155320396 and 155320405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164765 + ... + 165704.

It is an arithmetic number, because the mean of its divisors is an integer number (17845380).

Almost surely, 2^155320430 is an apocalyptic number.

155320430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155320430 is a deficient number, since it is larger than the sum of its proper divisors (130205650).

155320430 is a wasteful number, since it uses less digits than its factorization.

155320430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330523.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 155320430 is about 12462.7617324572. The cubic root of 155320430 is about 537.5384418152.

Adding to 155320430 its reverse (34023551), we get a palindrome (189343981).

The spelling of 155320430 in words is "one hundred fifty-five million, three hundred twenty thousand, four hundred thirty".