20142077 has 4 divisors (see below), whose sum is σ = 20397120. Its totient is φ = 19887036.

The previous prime is 20142053. The next prime is 20142079. The reversal of 20142077 is 77024102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20142077 - 2⁶ = 20142013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20142079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127403 + ... + 127560.

It is an arithmetic number, because the mean of its divisors is an integer number (5099280).

Almost surely, 2^20142077 is an apocalyptic number.

It is an amenable number.

20142077 is a deficient number, since it is larger than the sum of its proper divisors (255043).

20142077 is an equidigital number, since it uses as much as digits as its factorization.

20142077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255042.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 20142077 is about 4487.9925356444. The cubic root of 20142077 is about 272.0830061327.

Adding to 20142077 its reverse (77024102), we get a palindrome (97166179).

The spelling of 20142077 in words is "twenty million, one hundred forty-two thousand, seventy-seven".