501045121354 has 4 divisors (see below), whose sum is σ = 751567682034. Its totient is φ = 250522560676.

The previous prime is 501045121309. The next prime is 501045121403. The reversal of 501045121354 is 453121540105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 424943623129 + 76101498225 = 651877^2 + 275865^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 125261280337 + ... + 125261280340.

Almost surely, 2^501045121354 is an apocalyptic number.

501045121354 is a deficient number, since it is larger than the sum of its proper divisors (250522560680).

501045121354 is a wasteful number, since it uses less digits than its factorization.

501045121354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250522560679.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 501045121354 its reverse (453121540105), we get a palindrome (954166661459).

The spelling of 501045121354 in words is "five hundred one billion, forty-five million, one hundred twenty-one thousand, three hundred fifty-four".