1401750247 has 2 divisors, whose sum is σ = 1401750248. Its totient is φ = 1401750246.

The previous prime is 1401750241. The next prime is 1401750331. The reversal of 1401750247 is 7420571041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1401750247 - 2³ = 1401750239 is a prime.

It is a super-2 number, since 2×1401750247² = 3929807509929122018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401750241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700875123 + 700875124.

It is an arithmetic number, because the mean of its divisors is an integer number (700875124).

Almost surely, 2^1401750247 is an apocalyptic number.

1401750247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401750247 is an equidigital number, since it uses as much as digits as its factorization.

1401750247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 1401750247 is about 37439.9552216613. The cubic root of 1401750247 is about 1119.1549341267.

The spelling of 1401750247 in words is "one billion, four hundred one million, seven hundred fifty thousand, two hundred forty-seven".