1500401 has 8 divisors (see below), whose sum is σ = 1732224. Its totient is φ = 1272960.

The previous prime is 1500397. The next prime is 1500407. The reversal of 1500401 is 1040051.

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 1500401 - 2² = 1500397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1500407) 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, 320 + ... + 1761.

It is an arithmetic number, because the mean of its divisors is an integer number (216528).

2^1500401 is an apocalyptic number.

It is an amenable number.

1500401 is a deficient number, since it is larger than the sum of its proper divisors (231823).

1500401 is a wasteful number, since it uses less digits than its factorization.

1500401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1500401 is about 1224.9085680164. The cubic root of 1500401 is about 114.4816240223.

Adding to 1500401 its reverse (1040051), we get a palindrome (2540452).

The spelling of 1500401 in words is "one million, five hundred thousand, four hundred one".