1172401501 has 2 divisors, whose sum is σ = 1172401502. Its totient is φ = 1172401500.

The previous prime is 1172401469. The next prime is 1172401513. The reversal of 1172401501 is 1051042711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 859076100 + 313325401 = 29310^2 + 17701^2 .

It is a cyclic number.

It is not a de Polignac number, because 1172401501 - 2⁵ = 1172401469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172401541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586200750 + 586200751.

It is an arithmetic number, because the mean of its divisors is an integer number (586200751).

Almost surely, 2^1172401501 is an apocalyptic number.

It is an amenable number.

1172401501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172401501 is an equidigital number, since it uses as much as digits as its factorization.

1172401501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 1172401501 is about 34240.3490198333. The cubic root of 1172401501 is about 1054.4486988821.

The spelling of 1172401501 in words is "one billion, one hundred seventy-two million, four hundred one thousand, five hundred one".