1420766159 has 4 divisors (see below), whose sum is σ = 1420891416. Its totient is φ = 1420640904.

The previous prime is 1420766131. The next prime is 1420766201. The reversal of 1420766159 is 9516670241.

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

It is a cyclic number.

It is not a de Polignac number, because 1420766159 - 2⁸ = 1420765903 is a prime.

It is a super-2 number, since 2×1420766159² = 4037152957119226562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420766129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43709 + ... + 68934.

It is an arithmetic number, because the mean of its divisors is an integer number (355222854).

Almost surely, 2^1420766159 is an apocalyptic number.

1420766159 is a deficient number, since it is larger than the sum of its proper divisors (125257).

1420766159 is a wasteful number, since it uses less digits than its factorization.

1420766159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125256.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1420766159 is about 37693.0518663586. The cubic root of 1420766159 is about 1124.1929774980.

The spelling of 1420766159 in words is "one billion, four hundred twenty million, seven hundred sixty-six thousand, one hundred fifty-nine".