155254459 has 4 divisors (see below), whose sum is σ = 155282680. Its totient is φ = 155226240.

The previous prime is 155254457. The next prime is 155254483. The reversal of 155254459 is 954452551.

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 155254459 - 2¹ = 155254457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155254457) 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, 2877 + ... + 17854.

It is an arithmetic number, because the mean of its divisors is an integer number (38820670).

Almost surely, 2^155254459 is an apocalyptic number.

155254459 is a deficient number, since it is larger than the sum of its proper divisors (28221).

155254459 is an equidigital number, since it uses as much as digits as its factorization.

155254459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28220.

The product of its digits is 180000, while the sum is 40.

The square root of 155254459 is about 12460.1147265986. The cubic root of 155254459 is about 537.4623261137.

The spelling of 155254459 in words is "one hundred fifty-five million, two hundred fifty-four thousand, four hundred fifty-nine".