1200387601 has 4 divisors (see below), whose sum is σ = 1371871552. Its totient is φ = 1028903652.

The previous prime is 1200387599. The next prime is 1200387649. The reversal of 1200387601 is 1067830021.

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.

It is not a de Polignac number, because 1200387601 - 2¹ = 1200387599 is a prime.

It is a super-3 number, since 3×1200387601³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200387601.

It is not an unprimeable number, because it can be changed into a prime (1200387101) 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, 85741965 + ... + 85741978.

It is an arithmetic number, because the mean of its divisors is an integer number (342967888).

Almost surely, 2^1200387601 is an apocalyptic number.

It is an amenable number.

1200387601 is a deficient number, since it is larger than the sum of its proper divisors (171483951).

1200387601 is an equidigital number, since it uses as much as digits as its factorization.

1200387601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171483950.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1200387601 is about 34646.6102382325. The cubic root of 1200387601 is about 1062.7729700674.

The spelling of 1200387601 in words is "one billion, two hundred million, three hundred eighty-seven thousand, six hundred one".