1420661141 has 8 divisors (see below), whose sum is σ = 1496901120. Its totient is φ = 1344568032.

The previous prime is 1420661119. The next prime is 1420661153. The reversal of 1420661141 is 1411660241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420661141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420661141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420661191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16565 + ... + 55818.

It is an arithmetic number, because the mean of its divisors is an integer number (187112640).

Almost surely, 2^1420661141 is an apocalyptic number.

It is an amenable number.

1420661141 is a deficient number, since it is larger than the sum of its proper divisors (76239979).

1420661141 is a wasteful number, since it uses less digits than its factorization.

1420661141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73435.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1420661141 is about 37691.6587722005. The cubic root of 1420661141 is about 1124.1652780284.

The spelling of 1420661141 in words is "one billion, four hundred twenty million, six hundred sixty-one thousand, one hundred forty-one".