145141142 has 4 divisors (see below), whose sum is σ = 217711716. Its totient is φ = 72570570.

The previous prime is 145141099. The next prime is 145141147. The reversal of 145141142 is 241141541.

145141142 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241141541 = 41 ⋅5881501.

It is a super-2 number, since 2×145141142² = 42131902202128328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145141147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36285284 + ... + 36285287.

It is an arithmetic number, because the mean of its divisors is an integer number (54427929).

Almost surely, 2^145141142 is an apocalyptic number.

145141142 is a deficient number, since it is larger than the sum of its proper divisors (72570574).

145141142 is an equidigital number, since it uses as much as digits as its factorization.

145141142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72570573.

The product of its digits is 640, while the sum is 23.

The square root of 145141142 is about 12047.4537558772. The cubic root of 145141142 is about 525.5291921777.

Adding to 145141142 its reverse (241141541), we get a palindrome (386282683).

The spelling of 145141142 in words is "one hundred forty-five million, one hundred forty-one thousand, one hundred forty-two".