145383048 has 96 divisors (see below), whose sum is σ = 427223160. Its totient is φ = 44482560.

The previous prime is 145383011. The next prime is 145383053. The reversal of 145383048 is 840383541.

145383048 = 62² + 63² + ... + 758².

It can be written as a sum of positive squares in 4 ways, for example, as 78110244 + 67272804 = 8838^2 + 8202^2 .

It is a super-2 number, since 2×145383048² = 42272461291540608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48736 + ... + 51632.

Almost surely, 2^145383048 is an apocalyptic number.

145383048 is a gapful number since it is divisible by the number (18) 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 145383048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213611580).

145383048 is an abundant number, since it is smaller than the sum of its proper divisors (281840112).

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

145383048 is a wasteful number, since it uses less digits than its factorization.

145383048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967 (or 2960 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 145383048 is about 12057.4892908930. The cubic root of 145383048 is about 525.8209957286.

The spelling of 145383048 in words is "one hundred forty-five million, three hundred eighty-three thousand, forty-eight".