155233430 has 32 divisors (see below), whose sum is σ = 314661888. Its totient is φ = 54626400.

The previous prime is 155233427. The next prime is 155233447. The reversal of 155233430 is 34332551.

It is a self number, because there is not a number n which added to its sum of digits gives 155233430.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 19352 + ... + 26171.

It is an arithmetic number, because the mean of its divisors is an integer number (9833184).

Almost surely, 2^155233430 is an apocalyptic number.

155233430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155233430 is an abundant number, since it is smaller than the sum of its proper divisors (159428458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155233430 is a wasteful number, since it uses less digits than its factorization.

155233430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45572.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 155233430 is about 12459.2708454387. The cubic root of 155233430 is about 537.4380588438.

Adding to 155233430 its reverse (34332551), we get a palindrome (189565981).

The spelling of 155233430 in words is "one hundred fifty-five million, two hundred thirty-three thousand, four hundred thirty".