1501965 has 12 divisors (see below), whose sum is σ = 2603484. Its totient is φ = 801024.

The previous prime is 1501961. The next prime is 1501999. The reversal of 1501965 is 5691051.

It can be written as a sum of positive squares in 2 ways, for example, as 826281 + 675684 = 909^2 + 822^2 .

It is not a de Polignac number, because 1501965 - 2² = 1501961 is a prime.

It is a super-2 number, since 2×1501965² = 4511797722450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1501961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16644 + ... + 16733.

It is an arithmetic number, because the mean of its divisors is an integer number (216957).

2^1501965 is an apocalyptic number.

1501965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1501965 is a deficient number, since it is larger than the sum of its proper divisors (1101519).

1501965 is a wasteful number, since it uses less digits than its factorization.

1501965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33388 (or 33385 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 1501965 is about 1225.5468167312. The cubic root of 1501965 is about 114.5213882993.

The spelling of 1501965 in words is "one million, five hundred one thousand, nine hundred sixty-five".