145563040 has 48 divisors (see below), whose sum is σ = 393023232. Its totient is φ = 49906944.

The previous prime is 145563029. The next prime is 145563049. The reversal of 145563040 is 40365541.

It is a super-2 number, since 2×145563040² = 42377197228083200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (145563049) 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, 63864 + ... + 66103.

It is an arithmetic number, because the mean of its divisors is an integer number (8187984).

Almost surely, 2^145563040 is an apocalyptic number.

145563040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145563040 is an abundant number, since it is smaller than the sum of its proper divisors (247460192).

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

145563040 is a wasteful number, since it uses less digits than its factorization.

145563040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129989 (or 129981 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 145563040 is about 12064.9508909071. The cubic root of 145563040 is about 526.0379044234.

The spelling of 145563040 in words is "one hundred forty-five million, five hundred sixty-three thousand, forty".