155133430 has 8 divisors (see below), whose sum is σ = 279240192. Its totient is φ = 62053368.

The previous prime is 155133401. The next prime is 155133439. The reversal of 155133430 is 34331551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×155133430² = 48132762207129800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155133395 and 155133404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155133439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7756662 + ... + 7756681.

It is an arithmetic number, because the mean of its divisors is an integer number (34905024).

Almost surely, 2^155133430 is an apocalyptic number.

155133430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155133430 is a deficient number, since it is larger than the sum of its proper divisors (124106762).

155133430 is a wasteful number, since it uses less digits than its factorization.

155133430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15513350.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 155133430 is about 12455.2571229983. The cubic root of 155133430 is about 537.3226297758.

Adding to 155133430 its reverse (34331551), we get a palindrome (189464981).

The spelling of 155133430 in words is "one hundred fifty-five million, one hundred thirty-three thousand, four hundred thirty".