1501263 has 6 divisors (see below), whose sum is σ = 2168504. Its totient is φ = 1000836.

The previous prime is 1501261. The next prime is 1501303. The reversal of 1501263 is 3621051.

It is not a de Polignac number, because 1501263 - 2¹ = 1501261 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 (1501261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83395 + ... + 83412.

2^1501263 is an apocalyptic number.

1501263 is a deficient number, since it is larger than the sum of its proper divisors (667241).

1501263 is a wasteful number, since it uses less digits than its factorization.

1501263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166813 (or 166810 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1501263 is about 1225.2603804906. The cubic root of 1501263 is about 114.5035435553.

It can be divided in two parts, 1501 and 263, that added together give a square (1764 = 42²).

The spelling of 1501263 in words is "one million, five hundred one thousand, two hundred sixty-three".