145339436 has 24 divisors (see below), whose sum is σ = 292071360. Its totient is φ = 62586000.

The previous prime is 145339433. The next prime is 145339457. The reversal of 145339436 is 634933541.

It is a super-2 number, since 2×145339436² = 42247103313596192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 145339436.

It is not an unprimeable number, because it can be changed into a prime (145339433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86090 + ... + 87761.

It is an arithmetic number, because the mean of its divisors is an integer number (12169640).

Almost surely, 2^145339436 is an apocalyptic number.

It is an amenable number.

145339436 is an abundant number, since it is smaller than the sum of its proper divisors (146731924).

145339436 is a wasteful number, since it uses less digits than its factorization.

145339436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173885 (or 173883 counting only the distinct ones).

The product of its digits is 116640, while the sum is 38.

The square root of 145339436 is about 12055.6806527048. The cubic root of 145339436 is about 525.7684118842.

The spelling of 145339436 in words is "one hundred forty-five million, three hundred thirty-nine thousand, four hundred thirty-six".