1187461201 has 2 divisors, whose sum is σ = 1187461202. Its totient is φ = 1187461200.

The previous prime is 1187461139. The next prime is 1187461207. The reversal of 1187461201 is 1021647811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 843321600 + 344139601 = 29040^2 + 18551^2 .

It is a cyclic number.

It is not a de Polignac number, because 1187461201 - 2⁷ = 1187461073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1187461207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593730600 + 593730601.

It is an arithmetic number, because the mean of its divisors is an integer number (593730601).

Almost surely, 2^1187461201 is an apocalyptic number.

It is an amenable number.

1187461201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1187461201 is an equidigital number, since it uses as much as digits as its factorization.

1187461201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 1187461201 is about 34459.5589205666. The cubic root of 1187461201 is about 1058.9443629052.

The spelling of 1187461201 in words is "one billion, one hundred eighty-seven million, four hundred sixty-one thousand, two hundred one".