145311204 has 12 divisors (see below), whose sum is σ = 339059504. Its totient is φ = 48437064.

The previous prime is 145311203. The next prime is 145311281. The reversal of 145311204 is 402113541.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×145311204² = 42230692015859232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145311203) 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, 6054622 + ... + 6054645.

Almost surely, 2^145311204 is an apocalyptic number.

It is an amenable number.

145311204 is an abundant number, since it is smaller than the sum of its proper divisors (193748300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145311204 is a wasteful number, since it uses less digits than its factorization.

145311204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12109274 (or 12109272 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 145311204 is about 12054.5096955455. The cubic root of 145311204 is about 525.7343663987.

Adding to 145311204 its reverse (402113541), we get a palindrome (547424745).

The spelling of 145311204 in words is "one hundred forty-five million, three hundred eleven thousand, two hundred four".