140521053 has 16 divisors (see below), whose sum is σ = 196816896. Its totient is φ = 89007600.

The previous prime is 140521049. The next prime is 140521061. The reversal of 140521053 is 350125041.

It is not a de Polignac number, because 140521053 - 2² = 140521049 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140521253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3676 + ... + 17162.

It is an arithmetic number, because the mean of its divisors is an integer number (12301056).

Almost surely, 2^140521053 is an apocalyptic number.

It is an amenable number.

140521053 is a deficient number, since it is larger than the sum of its proper divisors (56295843).

140521053 is a wasteful number, since it uses less digits than its factorization.

140521053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13664.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 140521053 is about 11854.1576250698. The cubic root of 140521053 is about 519.8927947142.

Adding to 140521053 its reverse (350125041), we get a palindrome (490646094).

The spelling of 140521053 in words is "one hundred forty million, five hundred twenty-one thousand, fifty-three".