145428648 has 32 divisors (see below), whose sum is σ = 373400160. Its totient is φ = 47165760.

The previous prime is 145428637. The next prime is 145428653. The reversal of 145428648 is 846824541.

It is a super-2 number, since 2×145428648² = 42298983318215808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80998 + ... + 82773.

It is an arithmetic number, because the mean of its divisors is an integer number (11668755).

Almost surely, 2^145428648 is an apocalyptic number.

It is an amenable number.

145428648 is an abundant number, since it is smaller than the sum of its proper divisors (227971512).

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

145428648 is a wasteful number, since it uses less digits than its factorization.

145428648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163817 (or 163813 counting only the distinct ones).

The product of its digits is 245760, while the sum is 42.

The square root of 145428648 is about 12059.3800835698. The cubic root of 145428648 is about 525.8759652988.

The spelling of 145428648 in words is "one hundred forty-five million, four hundred twenty-eight thousand, six hundred forty-eight".