155430011 has 8 divisors (see below), whose sum is σ = 171240048. Its totient is φ = 139900000.

The previous prime is 155429983. The next prime is 155430029. The reversal of 155430011 is 110034551.

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

It is a cyclic number.

It is not a de Polignac number, because 155430011 - 2²⁶ = 88321147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155430071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68840 + ... + 71061.

It is an arithmetic number, because the mean of its divisors is an integer number (21405006).

Almost surely, 2^155430011 is an apocalyptic number.

155430011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155430011 is a deficient number, since it is larger than the sum of its proper divisors (15810037).

155430011 is a wasteful number, since it uses less digits than its factorization.

155430011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140013.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 155430011 is about 12467.1572942672. The cubic root of 155430011 is about 537.6648260324.

Adding to 155430011 its reverse (110034551), we get a palindrome (265464562).

The spelling of 155430011 in words is "one hundred fifty-five million, four hundred thirty thousand, eleven".