140052552421 has 2 divisors, whose sum is σ = 140052552422. Its totient is φ = 140052552420.

The previous prime is 140052552371. The next prime is 140052552481. The reversal of 140052552421 is 124255250041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135711192100 + 4341360321 = 368390^2 + 65889^2 .

It is a cyclic number.

It is not a de Polignac number, because 140052552421 - 2³³ = 131462617829 is a prime.

It is a super-2 number, since 2×140052552421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140052552481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70026276210 + 70026276211.

It is an arithmetic number, because the mean of its divisors is an integer number (70026276211).

Almost surely, 2^140052552421 is an apocalyptic number.

It is an amenable number.

140052552421 is a deficient number, since it is larger than the sum of its proper divisors (1).

140052552421 is an equidigital number, since it uses as much as digits as its factorization.

140052552421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 140052552421 in words is "one hundred forty billion, fifty-two million, five hundred fifty-two thousand, four hundred twenty-one".