1407070681 has 2 divisors, whose sum is σ = 1407070682. Its totient is φ = 1407070680.

The previous prime is 1407070663. The next prime is 1407070723. The reversal of 1407070681 is 1860707041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 962240400 + 444830281 = 31020^2 + 21091^2 .

It is an emirp because it is prime and its reverse (1860707041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1407070681 is a prime.

It is a super-2 number, since 2×1407070681² = 3959695802659607522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1407070601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703535340 + 703535341.

It is an arithmetic number, because the mean of its divisors is an integer number (703535341).

Almost surely, 2^1407070681 is an apocalyptic number.

It is an amenable number.

1407070681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1407070681 is an equidigital number, since it uses as much as digits as its factorization.

1407070681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 1407070681 is about 37510.9408173136. The cubic root of 1407070681 is about 1120.5690881807.

The spelling of 1407070681 in words is "one billion, four hundred seven million, seventy thousand, six hundred eighty-one".