145273548 has 24 divisors (see below), whose sum is σ = 387396352. Its totient is φ = 41506704.

The previous prime is 145273523. The next prime is 145273549. The reversal of 145273548 is 845372541.

It is a super-2 number, since 2×145273548² = 42208807497016608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145273549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864640 + ... + 864807.

Almost surely, 2^145273548 is an apocalyptic number.

It is an amenable number.

145273548 is an abundant number, since it is smaller than the sum of its proper divisors (242122804).

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

145273548 is a wasteful number, since it uses less digits than its factorization.

145273548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729461 (or 1729459 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 145273548 is about 12052.9476892584. The cubic root of 145273548 is about 525.6889494749.

The spelling of 145273548 in words is "one hundred forty-five million, two hundred seventy-three thousand, five hundred forty-eight".