355545421 has 12 divisors (see below), whose sum is σ = 451193760. Its totient is φ = 277047960.

The previous prime is 355545419. The next prime is 355545427. The reversal of 355545421 is 124545553.

It is not a de Polignac number, because 355545421 - 2¹ = 355545419 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 (355545427) 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 11 ways as a sum of consecutive naturals, for example, 329281 + ... + 330358.

It is an arithmetic number, because the mean of its divisors is an integer number (37599480).

Almost surely, 2^355545421 is an apocalyptic number.

It is an amenable number.

355545421 is a deficient number, since it is larger than the sum of its proper divisors (95648339).

355545421 is a wasteful number, since it uses less digits than its factorization.

355545421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659664 (or 659657 counting only the distinct ones).

The product of its digits is 60000, while the sum is 34.

The square root of 355545421 is about 18855.9120967404. The cubic root of 355545421 is about 708.4323150751.

The spelling of 355545421 in words is "three hundred fifty-five million, five hundred forty-five thousand, four hundred twenty-one".