145725142 has 8 divisors (see below), whose sum is σ = 218822832. Its totient is φ = 72784200.

The previous prime is 145725109. The next prime is 145725149. The reversal of 145725142 is 241527541.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145725149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36834 + ... + 40597.

It is an arithmetic number, because the mean of its divisors is an integer number (27352854).

Almost surely, 2^145725142 is an apocalyptic number.

145725142 is a deficient number, since it is larger than the sum of its proper divisors (73097690).

145725142 is an equidigital number, since it uses as much as digits as its factorization.

145725142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78374.

The product of its digits is 11200, while the sum is 31.

The square root of 145725142 is about 12071.6669105803. Note that the first 3 decimals coincide. The cubic root of 145725142 is about 526.2331008654.

The spelling of 145725142 in words is "one hundred forty-five million, seven hundred twenty-five thousand, one hundred forty-two".