427745153 has 4 divisors (see below), whose sum is σ = 466631088. Its totient is φ = 388859220.

The previous prime is 427745147. The next prime is 427745159. The reversal of 427745153 is 351547724.

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 an interprime number because it is at equal distance from previous prime (427745147) and next prime (427745159).

It is a cyclic number.

It is not a de Polignac number, because 427745153 - 2¹⁰ = 427744129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427745159) 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, 19442951 + ... + 19442972.

It is an arithmetic number, because the mean of its divisors is an integer number (116657772).

Almost surely, 2^427745153 is an apocalyptic number.

It is an amenable number.

427745153 is a deficient number, since it is larger than the sum of its proper divisors (38885935).

427745153 is a wasteful number, since it uses less digits than its factorization.

427745153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38885934.

The product of its digits is 117600, while the sum is 38.

The square root of 427745153 is about 20682.0007010927. Note that the first 3 decimals coincide. The cubic root of 427745153 is about 753.4625984661.

The spelling of 427745153 in words is "four hundred twenty-seven million, seven hundred forty-five thousand, one hundred fifty-three".