1601407 has 4 divisors (see below), whose sum is σ = 1607760. Its totient is φ = 1595056.

The previous prime is 1601399. The next prime is 1601423. The reversal of 1601407 is 7041061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7041061 = 31 ⋅227131.

It is a cyclic number.

It is not a de Polignac number, because 1601407 - 2³ = 1601399 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 (1601447) 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, 2782 + ... + 3307.

It is an arithmetic number, because the mean of its divisors is an integer number (401940).

2^1601407 is an apocalyptic number.

1601407 is a deficient number, since it is larger than the sum of its proper divisors (6353).

1601407 is an equidigital number, since it uses as much as digits as its factorization.

1601407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6352.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1601407 is about 1265.4671074350. The cubic root of 1601407 is about 116.9949835919.

Adding to 1601407 its reverse (7041061), we get a palindrome (8642468).

The spelling of 1601407 in words is "one million, six hundred one thousand, four hundred seven".