155153647 has 4 divisors (see below), whose sum is σ = 169258536. Its totient is φ = 141048760.

The previous prime is 155153641. The next prime is 155153651. The reversal of 155153647 is 746351551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746351551 = 11 ⋅67850141.

It is a cyclic number.

It is not a de Polignac number, because 155153647 - 2⁷ = 155153519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155153641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7052428 + ... + 7052449.

It is an arithmetic number, because the mean of its divisors is an integer number (42314634).

Almost surely, 2^155153647 is an apocalyptic number.

155153647 is a deficient number, since it is larger than the sum of its proper divisors (14104889).

155153647 is a wasteful number, since it uses less digits than its factorization.

155153647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14104888.

The product of its digits is 63000, while the sum is 37.

The square root of 155153647 is about 12456.0686815704. The cubic root of 155153647 is about 537.3459700702.

The spelling of 155153647 in words is "one hundred fifty-five million, one hundred fifty-three thousand, six hundred forty-seven".