353140429 has 4 divisors (see below), whose sum is σ = 359125920. Its totient is φ = 347154940.

The previous prime is 353140409. The next prime is 353140471. The reversal of 353140429 is 924041353.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 924041353 = 23 ⋅40175711.

It is a cyclic number.

It is not a de Polignac number, because 353140429 - 2¹⁹ = 352616141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 353140429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353140409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2992657 + ... + 2992774.

It is an arithmetic number, because the mean of its divisors is an integer number (89781480).

Almost surely, 2^353140429 is an apocalyptic number.

It is an amenable number.

353140429 is a deficient number, since it is larger than the sum of its proper divisors (5985491).

353140429 is an equidigital number, since it uses as much as digits as its factorization.

353140429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5985490.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 353140429 is about 18792.0309972073. The cubic root of 353140429 is about 706.8313661987.

The spelling of 353140429 in words is "three hundred fifty-three million, one hundred forty thousand, four hundred twenty-nine".