155163403 has 8 divisors (see below), whose sum is σ = 167787072. Its totient is φ = 142928256.

The previous prime is 155163397. The next prime is 155163413. The reversal of 155163403 is 304361551.

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 155163403 - 2¹³ = 155155211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155163413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96300 + ... + 97897.

It is an arithmetic number, because the mean of its divisors is an integer number (20973384).

Almost surely, 2^155163403 is an apocalyptic number.

155163403 is a deficient number, since it is larger than the sum of its proper divisors (12623669).

155163403 is a wasteful number, since it uses less digits than its factorization.

155163403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194261.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 155163403 is about 12456.4602917522. The cubic root of 155163403 is about 537.3572325348.

The spelling of 155163403 in words is "one hundred fifty-five million, one hundred sixty-three thousand, four hundred three".