145302052 has 18 divisors (see below), whose sum is σ = 295793862. Its totient is φ = 62272224.

The previous prime is 145302013. The next prime is 145302083. The reversal of 145302052 is 250203541.

It can be written as a sum of positive squares in only one way, i.e., 145298916 + 3136 = 12054^2 + 56^2 .

It is a super-2 number, since 2×145302052² = 42225372630821408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370473 + ... + 370864.

Almost surely, 2^145302052 is an apocalyptic number.

It is an amenable number.

145302052 is an abundant number, since it is smaller than the sum of its proper divisors (150491810).

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

145302052 is a wasteful number, since it uses less digits than its factorization.

145302052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741355 (or 741346 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 145302052 is about 12054.1300805989. The cubic root of 145302052 is about 525.7233288879.

Adding to 145302052 its reverse (250203541), we get a palindrome (395505593).

The spelling of 145302052 in words is "one hundred forty-five million, three hundred two thousand, fifty-two".