1491054070 has 64 divisors (see below), whose sum is σ = 3090389760. Its totient is φ = 512265600.

The previous prime is 1491054067. The next prime is 1491054079. The reversal of 1491054070 is 704501941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491054079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1025464 + ... + 1026916.

It is an arithmetic number, because the mean of its divisors is an integer number (48287340).

Almost surely, 2^1491054070 is an apocalyptic number.

1491054070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1491054070 is an abundant number, since it is smaller than the sum of its proper divisors (1599335690).

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

1491054070 is a wasteful number, since it uses less digits than its factorization.

1491054070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1491054070 is about 38614.1692905597. The cubic root of 1491054070 is about 1142.4340293918.

The spelling of 1491054070 in words is "one billion, four hundred ninety-one million, fifty-four thousand, seventy".