155424873 has 4 divisors (see below), whose sum is σ = 207233168. Its totient is φ = 103616580.

The previous prime is 155424803. The next prime is 155424937. The reversal of 155424873 is 378424551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 155424873 - 2¹⁴ = 155408489 is a prime.

It is a super-2 number, since 2×155424873² = 48313782294132258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155424803) 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, 25904143 + ... + 25904148.

It is an arithmetic number, because the mean of its divisors is an integer number (51808292).

Almost surely, 2^155424873 is an apocalyptic number.

It is an amenable number.

155424873 is a deficient number, since it is larger than the sum of its proper divisors (51808295).

155424873 is an equidigital number, since it uses as much as digits as its factorization.

155424873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51808294.

The product of its digits is 134400, while the sum is 39.

The square root of 155424873 is about 12466.9512311551. The cubic root of 155424873 is about 537.6589014959.

The spelling of 155424873 in words is "one hundred fifty-five million, four hundred twenty-four thousand, eight hundred seventy-three".