140433253 has 2 divisors, whose sum is σ = 140433254. Its totient is φ = 140433252.

The previous prime is 140433221. The next prime is 140433257. The reversal of 140433253 is 352334041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124055044 + 16378209 = 11138^2 + 4047^2 .

It is an emirp because it is prime and its reverse (352334041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140433253 - 2⁵ = 140433221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140433257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70216626 + 70216627.

It is an arithmetic number, because the mean of its divisors is an integer number (70216627).

Almost surely, 2^140433253 is an apocalyptic number.

It is an amenable number.

140433253 is a deficient number, since it is larger than the sum of its proper divisors (1).

140433253 is an equidigital number, since it uses as much as digits as its factorization.

140433253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 140433253 is about 11850.4537043946. The cubic root of 140433253 is about 519.7844927988.

Adding to 140433253 its reverse (352334041), we get a palindrome (492767294).

The spelling of 140433253 in words is "one hundred forty million, four hundred thirty-three thousand, two hundred fifty-three".