155413439 has 8 divisors (see below), whose sum is σ = 164695680. Its totient is φ = 146146816.

The previous prime is 155413409. The next prime is 155413451. The reversal of 155413439 is 934314551.

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 155413439 - 2⁸ = 155413183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155413399 and 155413408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155413409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21287 + ... + 27639.

It is an arithmetic number, because the mean of its divisors is an integer number (20586960).

Almost surely, 2^155413439 is an apocalyptic number.

155413439 is a deficient number, since it is larger than the sum of its proper divisors (9282241).

155413439 is a wasteful number, since it uses less digits than its factorization.

155413439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809.

The product of its digits is 32400, while the sum is 35.

The square root of 155413439 is about 12466.4926503006. The cubic root of 155413439 is about 537.6457166851.

The spelling of 155413439 in words is "one hundred fifty-five million, four hundred thirteen thousand, four hundred thirty-nine".