1501983 has 24 divisors (see below), whose sum is σ = 2574208. Its totient is φ = 857304.

The previous prime is 1501961. The next prime is 1501999. The reversal of 1501983 is 3891051.

It is not a de Polignac number, because 1501983 - 2⁹ = 1501471 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1501943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1260 + ... + 2142.

2^1501983 is an apocalyptic number.

1501983 is a deficient number, since it is larger than the sum of its proper divisors (1072225).

1501983 is an frugal number, since it uses more digits than its factorization.

1501983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 893 counting only the distinct ones).

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

The square root of 1501983 is about 1225.5541603699. The cubic root of 1501983 is about 114.5218457837.

The spelling of 1501983 in words is "one million, five hundred one thousand, nine hundred eighty-three".