354505221541 has 4 divisors (see below), whose sum is σ = 354795088032. Its totient is φ = 354215355052.

The previous prime is 354505221533. The next prime is 354505221547. The reversal of 354505221541 is 145122505453.

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: 145122505453 = 8237 ⋅17618369.

It is a cyclic number.

It is not a de Polignac number, because 354505221541 - 2³ = 354505221533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 354505221541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354505221547) 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, 144931411 + ... + 144933856.

It is an arithmetic number, because the mean of its divisors is an integer number (88698772008).

Almost surely, 2^354505221541 is an apocalyptic number.

It is an amenable number.

354505221541 is a deficient number, since it is larger than the sum of its proper divisors (289866491).

354505221541 is a wasteful number, since it uses less digits than its factorization.

354505221541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289866490.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 354505221541 its reverse (145122505453), we get a palindrome (499627726994).

The spelling of 354505221541 in words is "three hundred fifty-four billion, five hundred five million, two hundred twenty-one thousand, five hundred forty-one".