145473634 has 4 divisors (see below), whose sum is σ = 218210454. Its totient is φ = 72736816.

The previous prime is 145473583. The next prime is 145473637. The reversal of 145473634 is 436374541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436374541 = 61 ⋅7153681.

It can be written as a sum of positive squares in only one way, i.e., 115498009 + 29975625 = 10747^2 + 5475^2 .

It is a super-3 number, since 3×145473634³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145473593 and 145473602.

It is not an unprimeable number, because it can be changed into a prime (145473637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36368407 + ... + 36368410.

Almost surely, 2^145473634 is an apocalyptic number.

145473634 is a deficient number, since it is larger than the sum of its proper divisors (72736820).

145473634 is an equidigital number, since it uses as much as digits as its factorization.

145473634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72736819.

The product of its digits is 120960, while the sum is 37.

The square root of 145473634 is about 12061.2451264370. The cubic root of 145473634 is about 525.9301834500.

It can be divided in two parts, 14547 and 3634, that added together give a palindrome (18181).

The spelling of 145473634 in words is "one hundred forty-five million, four hundred seventy-three thousand, six hundred thirty-four".