1255461401 has 2 divisors, whose sum is σ = 1255461402. Its totient is φ = 1255461400.

The previous prime is 1255461391. The next prime is 1255461433. The reversal of 1255461401 is 1041645521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 913248400 + 342213001 = 30220^2 + 18499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255461401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1255461481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627730700 + 627730701.

It is an arithmetic number, because the mean of its divisors is an integer number (627730701).

Almost surely, 2^1255461401 is an apocalyptic number.

It is an amenable number.

1255461401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255461401 is an equidigital number, since it uses as much as digits as its factorization.

1255461401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1255461401 is about 35432.4907535443. The cubic root of 1255461401 is about 1078.7838966446.

The spelling of 1255461401 in words is "one billion, two hundred fifty-five million, four hundred sixty-one thousand, four hundred one".