153420142 has 4 divisors (see below), whose sum is σ = 230130216. Its totient is φ = 76710070.

The previous prime is 153420103. The next prime is 153420149. The reversal of 153420142 is 241024351.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153420149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38355034 + ... + 38355037.

It is an arithmetic number, because the mean of its divisors is an integer number (57532554).

Almost surely, 2^153420142 is an apocalyptic number.

153420142 is a deficient number, since it is larger than the sum of its proper divisors (76710074).

153420142 is an equidigital number, since it uses as much as digits as its factorization.

153420142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76710073.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 153420142 is about 12386.2884674950. The cubic root of 153420142 is about 535.3372456605.

Adding to 153420142 its reverse (241024351), we get a palindrome (394444493).

The spelling of 153420142 in words is "one hundred fifty-three million, four hundred twenty thousand, one hundred forty-two".