355145150405 has 4 divisors (see below), whose sum is σ = 426174180492. Its totient is φ = 284116120320.

The previous prime is 355145150309. The next prime is 355145150419. The reversal of 355145150405 is 504051541553.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 270086011204 + 85059139201 = 519698^2 + 291649^2 .

It is not a de Polignac number, because 355145150405 - 2¹² = 355145146309 is a prime.

It is a super-2 number, since 2×355145150405² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35514515036 + ... + 35514515045.

It is an arithmetic number, because the mean of its divisors is an integer number (106543545123).

Almost surely, 2^355145150405 is an apocalyptic number.

It is an amenable number.

355145150405 is a deficient number, since it is larger than the sum of its proper divisors (71029030087).

355145150405 is an equidigital number, since it uses as much as digits as its factorization.

355145150405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71029030086.

The product of its (nonzero) digits is 150000, while the sum is 38.

Adding to 355145150405 its reverse (504051541553), we get a palindrome (859196691958).

The spelling of 355145150405 in words is "three hundred fifty-five billion, one hundred forty-five million, one hundred fifty thousand, four hundred five".