145523434 has 48 divisors (see below), whose sum is σ = 271590408. Its totient is φ = 58103808.

The previous prime is 145523429. The next prime is 145523449. The reversal of 145523434 is 434325541.

It can be written as a sum of positive squares in 4 ways, for example, as 65367225 + 80156209 = 8085^2 + 8953^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145523396 and 145523405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187872 + ... + 188644.

Almost surely, 2^145523434 is an apocalyptic number.

145523434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145523434 is a deficient number, since it is larger than the sum of its proper divisors (126066974).

145523434 is a wasteful number, since it uses less digits than its factorization.

145523434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919 (or 912 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 145523434 is about 12063.3094132580. The cubic root of 145523434 is about 525.9901905094.

Adding to 145523434 its reverse (434325541), we get a palindrome (579848975).

The spelling of 145523434 in words is "one hundred forty-five million, five hundred twenty-three thousand, four hundred thirty-four".