1501389 has 16 divisors (see below), whose sum is σ = 2355840. Its totient is φ = 941760.

The previous prime is 1501369. The next prime is 1501411. The reversal of 1501389 is 9831051.

It is not a de Polignac number, because 1501389 - 2⁷ = 1501261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1501389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1501369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (147240).

2^1501389 is an apocalyptic number.

It is an amenable number.

1501389 is a deficient number, since it is larger than the sum of its proper divisors (854451).

1501389 is a wasteful number, since it uses less digits than its factorization.

1501389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3291 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1501389 is about 1225.3117970541. The cubic root of 1501389 is about 114.5067468676.

The spelling of 1501389 in words is "one million, five hundred one thousand, three hundred eighty-nine".