601221457 has 4 divisors (see below), whose sum is σ = 601444336. Its totient is φ = 600998580.

The previous prime is 601221451. The next prime is 601221461. The reversal of 601221457 is 754122106.

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, and also an emirpimes, since its reverse is a distinct semiprime: 754122106 = 2 ⋅377061053.

It is a cyclic number.

It is not a de Polignac number, because 601221457 - 2¹⁵ = 601188689 is a prime.

It is a super-2 number, since 2×601221457² = 722934480714405698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (601221451) 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, 107343 + ... + 112804.

It is an arithmetic number, because the mean of its divisors is an integer number (150361084).

Almost surely, 2^601221457 is an apocalyptic number.

It is an amenable number.

601221457 is a deficient number, since it is larger than the sum of its proper divisors (222879).

601221457 is a wasteful number, since it uses less digits than its factorization.

601221457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222878.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 601221457 is about 24519.8176379842. The cubic root of 601221457 is about 844.0046199855.

The spelling of 601221457 in words is "six hundred one million, two hundred twenty-one thousand, four hundred fifty-seven".