140613253 has 6 divisors (see below), whose sum is σ = 154558502. Its totient is φ = 127830120.

The previous prime is 140613251. The next prime is 140613259. The reversal of 140613253 is 352316041.

It can be written as a sum of positive squares in only one way, i.e., 140612164 + 1089 = 11858^2 + 33^2 .

It is not a de Polignac number, because 140613253 - 2¹ = 140613251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140613251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 580926 + ... + 581167.

Almost surely, 2^140613253 is an apocalyptic number.

It is an amenable number.

140613253 is a deficient number, since it is larger than the sum of its proper divisors (13945249).

140613253 is a wasteful number, since it uses less digits than its factorization.

140613253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162115 (or 1162104 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 140613253 is about 11858.0459182784. The cubic root of 140613253 is about 520.0064755111.

Adding to 140613253 its reverse (352316041), we get a palindrome (492929294).

The spelling of 140613253 in words is "one hundred forty million, six hundred thirteen thousand, two hundred fifty-three".