355151945 has 4 divisors (see below), whose sum is σ = 426182340. Its totient is φ = 284121552.

The previous prime is 355151911. The next prime is 355151957. The reversal of 355151945 is 549151553.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 549151553 = 2833 ⋅193841.

It can be written as a sum of positive squares in 2 ways, for example, as 172685881 + 182466064 = 13141^2 + 13508^2 .

It is a cyclic number.

It is not a de Polignac number, because 355151945 - 2²² = 350957641 is a prime.

It is a super-2 number, since 2×355151945² = 252265808074566050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 355151899 and 355151908.

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, 35515190 + ... + 35515199.

It is an arithmetic number, because the mean of its divisors is an integer number (106545585).

Almost surely, 2^355151945 is an apocalyptic number.

It is an amenable number.

355151945 is a deficient number, since it is larger than the sum of its proper divisors (71030395).

355151945 is an equidigital number, since it uses as much as digits as its factorization.

355151945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71030394.

The product of its digits is 67500, while the sum is 38.

The square root of 355151945 is about 18845.4754516834. The cubic root of 355151945 is about 708.1708819922.

The spelling of 355151945 in words is "three hundred fifty-five million, one hundred fifty-one thousand, nine hundred forty-five".