353540661 has 8 divisors (see below), whose sum is σ = 484127904. Its totient is φ = 229323600.

The previous prime is 353540651. The next prime is 353540683. The reversal of 353540661 is 166045353.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 353540661 - 2⁶ = 353540597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353540611) 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 in 7 ways as a sum of consecutive naturals, for example, 1592415 + ... + 1592636.

It is an arithmetic number, because the mean of its divisors is an integer number (60515988).

Almost surely, 2^353540661 is an apocalyptic number.

It is an amenable number.

353540661 is a deficient number, since it is larger than the sum of its proper divisors (130587243).

353540661 is a wasteful number, since it uses less digits than its factorization.

353540661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185091.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 353540661 is about 18802.6769636666. The cubic root of 353540661 is about 707.0982946892.

The spelling of 353540661 in words is "three hundred fifty-three million, five hundred forty thousand, six hundred sixty-one".