1780070141 has 4 divisors (see below), whose sum is σ = 1841451900. Its totient is φ = 1718688384.

The previous prime is 1780070101. The next prime is 1780070143. The reversal of 1780070141 is 1410700871.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1331520100 + 448550041 = 36490^2 + 21179^2 .

It is a cyclic number.

It is not a de Polignac number, because 1780070141 - 2²² = 1775875837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 61381729 = 1780070141 / (1 + 7 + 8 + 0 + 0 + 7 + 0 + 1 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1780070143) 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, 30690836 + ... + 30690893.

It is an arithmetic number, because the mean of its divisors is an integer number (460362975).

Almost surely, 2^1780070141 is an apocalyptic number.

It is an amenable number.

1780070141 is a deficient number, since it is larger than the sum of its proper divisors (61381759).

1780070141 is an equidigital number, since it uses as much as digits as its factorization.

1780070141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61381758.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 1780070141 is about 42190.8774618400. The cubic root of 1780070141 is about 1211.9341924662.

The spelling of 1780070141 in words is "one billion, seven hundred eighty million, seventy thousand, one hundred forty-one".