1501994 has 16 divisors (see below), whose sum is σ = 2487240. Its totient is φ = 675840.

The previous prime is 1501961. The next prime is 1501999. The reversal of 1501994 is 4991051.

It can be written as a sum of positive squares in 4 ways, for example, as 190969 + 1311025 = 437^2 + 1145^2 .

It is not an unprimeable number, because it can be changed into a prime (1501999) 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, 362 + ... + 1770.

2^1501994 is an apocalyptic number.

1501994 is a deficient number, since it is larger than the sum of its proper divisors (985246).

1501994 is a wasteful number, since it uses less digits than its factorization.

1501994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 1501994 is about 1225.5586481275. The cubic root of 1501994 is about 114.5221253557.

The spelling of 1501994 in words is "one million, five hundred one thousand, nine hundred ninety-four".