1201949017 has 2 divisors, whose sum is σ = 1201949018. Its totient is φ = 1201949016.

The previous prime is 1201948981. The next prime is 1201949053. The reversal of 1201949017 is 7109491021.

It is a balanced prime because it is at equal distance from previous prime (1201948981) and next prime (1201949053).

It can be written as a sum of positive squares in only one way, i.e., 1079713881 + 122235136 = 32859^2 + 11056^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201949017 - 2⁷ = 1201948889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201949117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600974508 + 600974509.

It is an arithmetic number, because the mean of its divisors is an integer number (600974509).

Almost surely, 2^1201949017 is an apocalyptic number.

It is an amenable number.

1201949017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201949017 is an equidigital number, since it uses as much as digits as its factorization.

1201949017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 1201949017 is about 34669.1363751680. The cubic root of 1201949017 is about 1063.2335745508.

The spelling of 1201949017 in words is "one billion, two hundred one million, nine hundred forty-nine thousand, seventeen".