145658542 has 4 divisors (see below), whose sum is σ = 218487816. Its totient is φ = 72829270.

The previous prime is 145658531. The next prime is 145658543. The reversal of 145658542 is 245856541.

145658542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 145658495 and 145658504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145658543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36414634 + ... + 36414637.

It is an arithmetic number, because the mean of its divisors is an integer number (54621954).

Almost surely, 2^145658542 is an apocalyptic number.

145658542 is a deficient number, since it is larger than the sum of its proper divisors (72829274).

145658542 is an equidigital number, since it uses as much as digits as its factorization.

145658542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72829273.

The product of its digits is 192000, while the sum is 40.

The square root of 145658542 is about 12068.9080699125. The cubic root of 145658542 is about 526.1529214616.

The spelling of 145658542 in words is "one hundred forty-five million, six hundred fifty-eight thousand, five hundred forty-two".