155104451 has 4 divisors (see below), whose sum is σ = 157733400. Its totient is φ = 152475504.

The previous prime is 155104427. The next prime is 155104457. The reversal of 155104451 is 154401551.

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 155104451 - 2¹⁴ = 155088067 is a prime.

It is a super-2 number, since 2×155104451² = 48114781440022802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155104451.

It is not an unprimeable number, because it can be changed into a prime (155104457) 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, 1314386 + ... + 1314503.

It is an arithmetic number, because the mean of its divisors is an integer number (39433350).

Almost surely, 2^155104451 is an apocalyptic number.

155104451 is a deficient number, since it is larger than the sum of its proper divisors (2628949).

155104451 is an equidigital number, since it uses as much as digits as its factorization.

155104451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628948.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 155104451 is about 12454.0937446287. The cubic root of 155104451 is about 537.2891703163.

The spelling of 155104451 in words is "one hundred fifty-five million, one hundred four thousand, four hundred fifty-one".