1601125271 has 8 divisors (see below), whose sum is σ = 1606867584. Its totient is φ = 1595394360.

The previous prime is 1601125261. The next prime is 1601125277. The reversal of 1601125271 is 1725211061.

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 1601125271 - 2²² = 1596930967 is a prime.

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 1601125271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601125277) 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, 353000 + ... + 357506.

It is an arithmetic number, because the mean of its divisors is an integer number (200858448).

Almost surely, 2^1601125271 is an apocalyptic number.

1601125271 is a deficient number, since it is larger than the sum of its proper divisors (5742313).

1601125271 is an equidigital number, since it uses as much as digits as its factorization.

1601125271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5701.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1601125271 is about 40014.0634152544. The cubic root of 1601125271 is about 1169.8812237279.

The spelling of 1601125271 in words is "one billion, six hundred one million, one hundred twenty-five thousand, two hundred seventy-one".