1420015061 has 8 divisors (see below), whose sum is σ = 1448009784. Its totient is φ = 1392064960.

The previous prime is 1420015007. The next prime is 1420015081. The reversal of 1420015061 is 1605100241.

It can be written as a sum of positive squares in 4 ways, for example, as 439698961 + 980316100 = 20969^2 + 31310^2 .

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-1420015061 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 (1420015081) 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 7 ways as a sum of consecutive naturals, for example, 57191 + ... + 78171.

It is an arithmetic number, because the mean of its divisors is an integer number (181001223).

Almost surely, 2^1420015061 is an apocalyptic number.

It is an amenable number.

1420015061 is a deficient number, since it is larger than the sum of its proper divisors (27994723).

1420015061 is a wasteful number, since it uses less digits than its factorization.

1420015061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22311.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1420015061 is about 37683.0872010243. The cubic root of 1420015061 is about 1123.9948384092.

The spelling of 1420015061 in words is "one billion, four hundred twenty million, fifteen thousand, sixty-one".