772140401 has 2 divisors, whose sum is σ = 772140402. Its totient is φ = 772140400.

The previous prime is 772140371. The next prime is 772140403. The reversal of 772140401 is 104041277.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442681600 + 329458801 = 21040^2 + 18151^2 .

It is an emirp because it is prime and its reverse (104041277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 772140401 - 2¹⁰ = 772139377 is a prime.

Together with 772140403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (772140403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386070200 + 386070201.

It is an arithmetic number, because the mean of its divisors is an integer number (386070201).

Almost surely, 2^772140401 is an apocalyptic number.

It is an amenable number.

772140401 is a deficient number, since it is larger than the sum of its proper divisors (1).

772140401 is an equidigital number, since it uses as much as digits as its factorization.

772140401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 772140401 is about 27787.4144353159. The cubic root of 772140401 is about 917.4141315991.

Adding to 772140401 its reverse (104041277), we get a palindrome (876181678).

The spelling of 772140401 in words is "seven hundred seventy-two million, one hundred forty thousand, four hundred one".