1420507061 has 8 divisors (see below), whose sum is σ = 1444409784. Its totient is φ = 1396624320.

The previous prime is 1420507043. The next prime is 1420507103. The reversal of 1420507061 is 1607050241.

It can be written as a sum of positive squares in 4 ways, for example, as 4866436 + 1415640625 = 2206^2 + 37625^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1420507061 - 2²⁶ = 1353398197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420507061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420507001) 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, 228551 + ... + 234683.

It is an arithmetic number, because the mean of its divisors is an integer number (180551223).

Almost surely, 2^1420507061 is an apocalyptic number.

It is an amenable number.

1420507061 is a deficient number, since it is larger than the sum of its proper divisors (23902723).

1420507061 is an equidigital number, since it uses as much as digits as its factorization.

1420507061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9991.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1420507061 is about 37689.6147632209. The cubic root of 1420507061 is about 1124.1246355314.

The spelling of 1420507061 in words is "one billion, four hundred twenty million, five hundred seven thousand, sixty-one".