145823740 has 12 divisors (see below), whose sum is σ = 306229896. Its totient is φ = 58329488.

The previous prime is 145823737. The next prime is 145823761. The reversal of 145823740 is 47328541.

It is a junction number, because it is equal to n+sod(n) for n = 145823696 and 145823705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3645574 + ... + 3645613.

It is an arithmetic number, because the mean of its divisors is an integer number (25519158).

Almost surely, 2^145823740 is an apocalyptic number.

145823740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145823740 is an abundant number, since it is smaller than the sum of its proper divisors (160406156).

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

145823740 is a wasteful number, since it uses less digits than its factorization.

145823740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7291196 (or 7291194 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 145823740 is about 12075.7500802228. The cubic root of 145823740 is about 526.3517576577.

The spelling of 145823740 in words is "one hundred forty-five million, eight hundred twenty-three thousand, seven hundred forty".