145439041 has 8 divisors (see below), whose sum is σ = 159090624. Its totient is φ = 131859120.

The previous prime is 145439033. The next prime is 145439057. The reversal of 145439041 is 140934541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145439041 - 2³ = 145439033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145438994 and 145439012.

It is not an unprimeable number, because it can be changed into a prime (145437041) 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, 13621 + ... + 21826.

It is an arithmetic number, because the mean of its divisors is an integer number (19886328).

Almost surely, 2^145439041 is an apocalyptic number.

145439041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145439041 is a deficient number, since it is larger than the sum of its proper divisors (13651583).

145439041 is a wasteful number, since it uses less digits than its factorization.

145439041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35831.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 145439041 is about 12059.8109852518. The cubic root of 145439041 is about 525.8884921720. Note that the first 3 decimals are identical.

The spelling of 145439041 in words is "one hundred forty-five million, four hundred thirty-nine thousand, forty-one".