145758840 has 32 divisors (see below), whose sum is σ = 437276880. Its totient is φ = 38868992.

The previous prime is 145758839. The next prime is 145758883. The reversal of 145758840 is 48857541.

It is a junction number, because it is equal to n+sod(n) for n = 145758792 and 145758801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607209 + ... + 607448.

Almost surely, 2^145758840 is an apocalyptic number.

145758840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145758840 is an abundant number, since it is smaller than the sum of its proper divisors (291518040).

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

145758840 is a wasteful number, since it uses less digits than its factorization.

145758840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214671 (or 1214667 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 145758840 is about 12073.0625774904. The cubic root of 145758840 is about 526.2736604103.

The spelling of 145758840 in words is "one hundred forty-five million, seven hundred fifty-eight thousand, eight hundred forty".