1620020141 has 8 divisors (see below), whose sum is σ = 1660479744. Its totient is φ = 1579687200.

The previous prime is 1620020131. The next prime is 1620020201. The reversal of 1620020141 is 1410200261.

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-1620020141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620020131) 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, 5501 + ... + 57186.

It is an arithmetic number, because the mean of its divisors is an integer number (207559968).

Almost surely, 2^1620020141 is an apocalyptic number.

It is an amenable number.

1620020141 is a deficient number, since it is larger than the sum of its proper divisors (40459603).

1620020141 is an equidigital number, since it uses as much as digits as its factorization.

1620020141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63331.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1620020141 is about 40249.4737978026. The cubic root of 1620020141 is about 1174.4651595743.

The spelling of 1620020141 in words is "one billion, six hundred twenty million, twenty thousand, one hundred forty-one".