155430046 has 4 divisors (see below), whose sum is σ = 233145072. Its totient is φ = 77715022.

The previous prime is 155430029. The next prime is 155430047. The reversal of 155430046 is 640034551.

155430046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 155429996 and 155430023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155430047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38857510 + ... + 38857513.

It is an arithmetic number, because the mean of its divisors is an integer number (58286268).

Almost surely, 2^155430046 is an apocalyptic number.

155430046 is a deficient number, since it is larger than the sum of its proper divisors (77715026).

155430046 is an equidigital number, since it uses as much as digits as its factorization.

155430046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77715025.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 155430046 is about 12467.1586979552. The cubic root of 155430046 is about 537.6648663898.

Adding to 155430046 its reverse (640034551), we get a palindrome (795464597).

The spelling of 155430046 in words is "one hundred fifty-five million, four hundred thirty thousand, forty-six".