4521457 has 4 divisors (see below), whose sum is σ = 4549360.
Its totient is φ = 4493556.
The previous prime is 4521427. The next prime is 4521509. The reversal of 4521457 is 7541254.
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 a cyclic number.
It is not a de Polignac number, because 4521457 - 215 = 4488689 is a prime.
It is a Duffinian number.
4521457 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (4521427) 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, 13707 + ... + 14032.
It is an arithmetic number, because the mean of its divisors is an integer number (1137340).
Almost surely, 24521457 is an apocalyptic number.
It is an amenable number.
4521457 is a deficient number, since it is larger than the sum of its proper divisors (27903).
4521457 is a wasteful number, since it uses less digits than its factorization.
4521457 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27902.
The product of its digits is 5600, while the sum is 28.
The square root of 4521457 is about 2126.3717925142.
The cubic root of 4521457 is about 165.3583518584.
The spelling of 4521457 in words is "four million, five hundred twenty-one thousand, four hundred fifty-seven".