601221542 has 16 divisors (see below), whose sum is σ = 909062352. Its totient is φ = 298210080.

The previous prime is 601221497. The next prime is 601221563. The reversal of 601221542 is 245122106.

It is a happy number.

It is a super-2 number, since 2×601221542² = 722934685129715528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144917 + ... + 149007.

It is an arithmetic number, because the mean of its divisors is an integer number (56816397).

Almost surely, 2^601221542 is an apocalyptic number.

601221542 is a deficient number, since it is larger than the sum of its proper divisors (307840810).

601221542 is a wasteful number, since it uses less digits than its factorization.

601221542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 601221542 is about 24519.8193712760. The cubic root of 601221542 is about 844.0046597603.

Adding to 601221542 its reverse (245122106), we get a palindrome (846343648).

The spelling of 601221542 in words is "six hundred one million, two hundred twenty-one thousand, five hundred forty-two".