1491522 has 8 divisors (see below), whose sum is σ = 2983056. Its totient is φ = 497172.

The previous prime is 1491521. The next prime is 1491547. The reversal of 1491522 is 2251941.

It is a sphenic number, since it is the product of 3 distinct primes.

1491522 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1491492 and 1491501.

It is not an unprimeable number, because it can be changed into a prime (1491521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124288 + ... + 124299.

It is an arithmetic number, because the mean of its divisors is an integer number (372882).

2^1491522 is an apocalyptic number.

1491522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1491522 is a wasteful number, since it uses less digits than its factorization.

1491522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248592.

The product of its digits is 720, while the sum is 24.

The square root of 1491522 is about 1221.2788379400. The cubic root of 1491522 is about 114.2553525001.

The spelling of 1491522 in words is "one million, four hundred ninety-one thousand, five hundred twenty-two".