155452459 has 4 divisors (see below), whose sum is σ = 155648304. Its totient is φ = 155256616.

The previous prime is 155452399. The next prime is 155452463. The reversal of 155452459 is 954254551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954254551 = 199 ⋅4795249.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155452459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155452159) 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, 96727 + ... + 98320.

It is an arithmetic number, because the mean of its divisors is an integer number (38912076).

Almost surely, 2^155452459 is an apocalyptic number.

155452459 is a deficient number, since it is larger than the sum of its proper divisors (195845).

155452459 is an equidigital number, since it uses as much as digits as its factorization.

155452459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195844.

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

The square root of 155452459 is about 12468.0575471883. The cubic root of 155452459 is about 537.6907088910.

The spelling of 155452459 in words is "one hundred fifty-five million, four hundred fifty-two thousand, four hundred fifty-nine".