145269472 has 48 divisors (see below), whose sum is σ = 308109312. Its totient is φ = 67224960.

The previous prime is 145269469. The next prime is 145269521. The reversal of 145269472 is 274962541.

It is a super-2 number, since 2×145269472² = 42206438990317568, which contains 22 as substring.

It is a congruent number.

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, 19633 + ... + 25999.

It is an arithmetic number, because the mean of its divisors is an integer number (6418944).

Almost surely, 2^145269472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145269472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154054656).

145269472 is an abundant number, since it is smaller than the sum of its proper divisors (162839840).

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

145269472 is a wasteful number, since it uses less digits than its factorization.

145269472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6431 (or 6423 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 145269472 is about 12052.7786008040. The cubic root of 145269472 is about 525.6840329382.

The spelling of 145269472 in words is "one hundred forty-five million, two hundred sixty-nine thousand, four hundred seventy-two".