1491654 has 8 divisors (see below), whose sum is σ = 2983320. Its totient is φ = 497216.

The previous prime is 1491653. The next prime is 1491661. The reversal of 1491654 is 4561941.

It is a happy number.

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

1491654 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491653) 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, 124299 + ... + 124310.

It is an arithmetic number, because the mean of its divisors is an integer number (372915).

2^1491654 is an apocalyptic number.

1491654 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.

1491654 is a wasteful number, since it uses less digits than its factorization.

1491654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248614.

The product of its digits is 4320, while the sum is 30.

The square root of 1491654 is about 1221.3328784570. The cubic root of 1491654 is about 114.2587229413.

It can be divided in two parts, 1491 and 654, that added together give a triangular number (2145 = T₆₅).

The spelling of 1491654 in words is "one million, four hundred ninety-one thousand, six hundred fifty-four".