365421145 has 4 divisors (see below), whose sum is σ = 438505380. Its totient is φ = 292336912.

The previous prime is 365421143. The next prime is 365421163. The reversal of 365421145 is 541124563.

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: 541124563 = 7 ⋅77303509.

It can be written as a sum of positive squares in 2 ways, for example, as 144096016 + 221325129 = 12004^2 + 14877^2 .

It is a cyclic number.

It is not a de Polignac number, because 365421145 - 2¹ = 365421143 is a prime.

It is a super-2 number, since 2×365421145² = 267065226426222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (365421143) 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, 36542110 + ... + 36542119.

It is an arithmetic number, because the mean of its divisors is an integer number (109626345).

Almost surely, 2^365421145 is an apocalyptic number.

It is an amenable number.

365421145 is a deficient number, since it is larger than the sum of its proper divisors (73084235).

365421145 is an equidigital number, since it uses as much as digits as its factorization.

365421145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73084234.

The product of its digits is 14400, while the sum is 31.

The square root of 365421145 is about 19115.9918654513. The cubic root of 365421145 is about 714.9317065193.

The spelling of 365421145 in words is "three hundred sixty-five million, four hundred twenty-one thousand, one hundred forty-five".