145428952 has 16 divisors (see below), whose sum is σ = 272971440. Its totient is φ = 72636576.

The previous prime is 145428947. The next prime is 145428953. The reversal of 145428952 is 259824541.

It is a happy number.

It is a super-2 number, since 2×145428952² = 42299160159636608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145428953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1383 + ... + 17110.

It is an arithmetic number, because the mean of its divisors is an integer number (17060715).

Almost surely, 2^145428952 is an apocalyptic number.

It is an amenable number.

145428952 is a deficient number, since it is larger than the sum of its proper divisors (127542488).

145428952 is a wasteful number, since it uses less digits than its factorization.

145428952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19482 (or 19478 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 145428952 is about 12059.3926878595. The cubic root of 145428952 is about 525.8763317240.

The spelling of 145428952 in words is "one hundred forty-five million, four hundred twenty-eight thousand, nine hundred fifty-two".