1201747513 has 4 divisors (see below), whose sum is σ = 1203945040. Its totient is φ = 1199549988.

The previous prime is 1201747507. The next prime is 1201747517. The reversal of 1201747513 is 3157471021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3157471021 = 2039 ⋅1548539.

It is a cyclic number.

It is not a de Polignac number, because 1201747513 - 2²⁹ = 664876601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201747517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097943 + ... + 1099036.

It is an arithmetic number, because the mean of its divisors is an integer number (300986260).

Almost surely, 2^1201747513 is an apocalyptic number.

It is an amenable number.

1201747513 is a deficient number, since it is larger than the sum of its proper divisors (2197527).

1201747513 is an equidigital number, since it uses as much as digits as its factorization.

1201747513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197526.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1201747513 is about 34666.2301527005. The cubic root of 1201747513 is about 1063.1741550056.

The spelling of 1201747513 in words is "one billion, two hundred one million, seven hundred forty-seven thousand, five hundred thirteen".