145105346 has 4 divisors (see below), whose sum is σ = 217658022. Its totient is φ = 72552672.

The previous prime is 145105343. The next prime is 145105351. The reversal of 145105346 is 643501541.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 121242121 + 23863225 = 11011^2 + 4885^2 .

It is a super-2 number, since 2×145105346² = 42111122875559432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145105343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36276335 + ... + 36276338.

Almost surely, 2^145105346 is an apocalyptic number.

145105346 is a deficient number, since it is larger than the sum of its proper divisors (72552676).

145105346 is an equidigital number, since it uses as much as digits as its factorization.

145105346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72552675.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 145105346 is about 12045.9680391407. The cubic root of 145105346 is about 525.4859850635.

Adding to 145105346 its reverse (643501541), we get a palindrome (788606887).

The spelling of 145105346 in words is "one hundred forty-five million, one hundred five thousand, three hundred forty-six".