145384552 has 16 divisors (see below), whose sum is σ = 272723940. Its totient is φ = 72658176.

The previous prime is 145384517. The next prime is 145384567. The reversal of 145384552 is 255483541.

It can be written as a sum of positive squares in 2 ways, for example, as 128459556 + 16924996 = 11334^2 + 4114^2 .

It is a super-2 number, since 2×145384552² = 42273335920481408, which contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 31888 + ... + 36160.

Almost surely, 2^145384552 is an apocalyptic number.

It is an amenable number.

145384552 is a deficient number, since it is larger than the sum of its proper divisors (127339388).

145384552 is a wasteful number, since it uses less digits than its factorization.

145384552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8532 (or 8528 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The square root of 145384552 is about 12057.5516586080. The cubic root of 145384552 is about 525.8228089433.

The spelling of 145384552 in words is "one hundred forty-five million, three hundred eighty-four thousand, five hundred fifty-two".