1201001597 has 8 divisors (see below), whose sum is σ = 1241372160. Its totient is φ = 1160732880.

The previous prime is 1201001591. The next prime is 1201001623. The reversal of 1201001597 is 7951001021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201001597 - 2¹⁸ = 1200739453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201001591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097 + ... + 49022.

It is an arithmetic number, because the mean of its divisors is an integer number (155171520).

Almost surely, 2^1201001597 is an apocalyptic number.

It is an amenable number.

1201001597 is a deficient number, since it is larger than the sum of its proper divisors (40370563).

1201001597 is an equidigital number, since it uses as much as digits as its factorization.

1201001597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50923.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 1201001597 is about 34655.4699434303. The cubic root of 1201001597 is about 1062.9541413064.

The spelling of 1201001597 in words is "one billion, two hundred one million, one thousand, five hundred ninety-seven".