155426413 has 4 divisors (see below), whose sum is σ = 155685628. Its totient is φ = 155167200.

The previous prime is 155426357. The next prime is 155426423. The reversal of 155426413 is 314624551.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 130804969 + 24621444 = 11437^2 + 4962^2 .

It is a cyclic number.

It is not a de Polignac number, because 155426413 - 2⁹ = 155425901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155426423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128706 + ... + 129907.

It is an arithmetic number, because the mean of its divisors is an integer number (38921407).

Almost surely, 2^155426413 is an apocalyptic number.

It is an amenable number.

155426413 is a deficient number, since it is larger than the sum of its proper divisors (259215).

155426413 is an equidigital number, since it uses as much as digits as its factorization.

155426413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259214.

The product of its digits is 14400, while the sum is 31.

The square root of 155426413 is about 12467.0129942982. The cubic root of 155426413 is about 537.6606772562.

The spelling of 155426413 in words is "one hundred fifty-five million, four hundred twenty-six thousand, four hundred thirteen".