140617429 has 2 divisors, whose sum is σ = 140617430. Its totient is φ = 140617428.

The previous prime is 140617403. The next prime is 140617453. The reversal of 140617429 is 924716041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84217329 + 56400100 = 9177^2 + 7510^2 .

It is a cyclic number.

It is not a de Polignac number, because 140617429 - 2⁵ = 140617397 is a prime.

It is a super-2 number, since 2×140617429² = 39546522677140082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140617394 and 140617403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140617459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70308714 + 70308715.

It is an arithmetic number, because the mean of its divisors is an integer number (70308715).

Almost surely, 2^140617429 is an apocalyptic number.

It is an amenable number.

140617429 is a deficient number, since it is larger than the sum of its proper divisors (1).

140617429 is an equidigital number, since it uses as much as digits as its factorization.

140617429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 140617429 is about 11858.2219999459. The cubic root of 140617429 is about 520.0116232609.

The spelling of 140617429 in words is "one hundred forty million, six hundred seventeen thousand, four hundred twenty-nine".