145428650 has 12 divisors (see below), whose sum is σ = 270497382. Its totient is φ = 58171440.

The previous prime is 145428637. The next prime is 145428653. The reversal of 145428650 is 56824541.

It can be written as a sum of positive squares in 3 ways, for example, as 56145049 + 89283601 = 7493^2 + 9449^2 .

It is a super-2 number, since 2×145428650² = 42298984481645000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145428650.

It is not an unprimeable number, because it can be changed into a prime (145428653) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1454237 + ... + 1454336.

Almost surely, 2^145428650 is an apocalyptic number.

145428650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145428650 is a deficient number, since it is larger than the sum of its proper divisors (125068732).

145428650 is a wasteful number, since it uses less digits than its factorization.

145428650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908585 (or 2908580 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 145428650 is about 12059.3801664928. The cubic root of 145428650 is about 525.8759677095.

The spelling of 145428650 in words is "one hundred forty-five million, four hundred twenty-eight thousand, six hundred fifty".