1400680751 has 2 divisors, whose sum is σ = 1400680752. Its totient is φ = 1400680750.

The previous prime is 1400680717. The next prime is 1400680759. The reversal of 1400680751 is 1570860041.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1570860041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400680751 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400680759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700340375 + 700340376.

It is an arithmetic number, because the mean of its divisors is an integer number (700340376).

Almost surely, 2^1400680751 is an apocalyptic number.

1400680751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400680751 is an equidigital number, since it uses as much as digits as its factorization.

1400680751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1400680751 is about 37425.6696800471. The cubic root of 1400680751 is about 1118.8702337992.

The spelling of 1400680751 in words is "one billion, four hundred million, six hundred eighty thousand, seven hundred fifty-one".