145452142 has 8 divisors (see below), whose sum is σ = 238012632. Its totient is φ = 66114600.

The previous prime is 145452137. The next prime is 145452149. The reversal of 145452142 is 241254541.

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

It is a super-2 number, since 2×145452142² = 42312651224776328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145452142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145452149) 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, 3305709 + ... + 3305752.

It is an arithmetic number, because the mean of its divisors is an integer number (29751579).

Almost surely, 2^145452142 is an apocalyptic number.

145452142 is a deficient number, since it is larger than the sum of its proper divisors (92560490).

145452142 is a wasteful number, since it uses less digits than its factorization.

145452142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6611474.

The product of its digits is 6400, while the sum is 28.

The square root of 145452142 is about 12060.3541407373. The cubic root of 145452142 is about 525.9042821970.

The spelling of 145452142 in words is "one hundred forty-five million, four hundred fifty-two thousand, one hundred forty-two".