145647296 has 56 divisors (see below), whose sum is σ = 307787040. Its totient is φ = 68145152.

The previous prime is 145647289. The next prime is 145647301. The reversal of 145647296 is 692746541.

It is a super-2 number, since 2×145647296² = 42426269664223232, 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, 285890 + ... + 286398.

Almost surely, 2^145647296 is an apocalyptic number.

145647296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145647296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153893520).

145647296 is an abundant number, since it is smaller than the sum of its proper divisors (162139744).

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

145647296 is a wasteful number, since it uses less digits than its factorization.

145647296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801 (or 791 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 145647296 is about 12068.4421529873. The cubic root of 145647296 is about 526.1393800472.

The spelling of 145647296 in words is "one hundred forty-five million, six hundred forty-seven thousand, two hundred ninety-six".