142402601 has 6 divisors (see below), whose sum is σ = 156525306. Its totient is φ = 129456800.

The previous prime is 142402583. The next prime is 142402613. The reversal of 142402601 is 106204241.

It can be written as a sum of positive squares in only one way, i.e., 80371225 + 62031376 = 8965^2 + 7876^2 .

It is not a de Polignac number, because 142402601 - 2¹⁰ = 142401577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142402661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 588320 + ... + 588561.

It is an arithmetic number, because the mean of its divisors is an integer number (26087551).

Almost surely, 2^142402601 is an apocalyptic number.

142402601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142402601 is a deficient number, since it is larger than the sum of its proper divisors (14122705).

142402601 is a wasteful number, since it uses less digits than its factorization.

142402601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176903 (or 1176892 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 142402601 is about 11933.2560937910. The cubic root of 142402601 is about 522.2029336286.

Adding to 142402601 its reverse (106204241), we get a palindrome (248606842).

The spelling of 142402601 in words is "one hundred forty-two million, four hundred two thousand, six hundred one".