155356427 has 4 divisors (see below), whose sum is σ = 156224520. Its totient is φ = 154488336.

The previous prime is 155356417. The next prime is 155356457. The reversal of 155356427 is 724653551.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 155356427 - 2⁶ = 155356363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155356417) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 433778 + ... + 434135.

It is an arithmetic number, because the mean of its divisors is an integer number (39056130).

Almost surely, 2^155356427 is an apocalyptic number.

155356427 is a deficient number, since it is larger than the sum of its proper divisors (868093).

155356427 is an equidigital number, since it uses as much as digits as its factorization.

155356427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868092.

The product of its digits is 126000, while the sum is 38.

The square root of 155356427 is about 12464.2058310989. The cubic root of 155356427 is about 537.5799651715.

The spelling of 155356427 in words is "one hundred fifty-five million, three hundred fifty-six thousand, four hundred twenty-seven".