1491125470 has 8 divisors (see below), whose sum is σ = 2684025864. Its totient is φ = 596450184.

The previous prime is 1491125459. The next prime is 1491125473. The reversal of 1491125470 is 745211941.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491125473) 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, 74556264 + ... + 74556283.

It is an arithmetic number, because the mean of its divisors is an integer number (335503233).

Almost surely, 2^1491125470 is an apocalyptic number.

1491125470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1491125470 is a deficient number, since it is larger than the sum of its proper divisors (1192900394).

1491125470 is a wasteful number, since it uses less digits than its factorization.

1491125470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149112554.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1491125470 is about 38615.0938105814. The cubic root of 1491125470 is about 1142.4522644756.

The spelling of 1491125470 in words is "one billion, four hundred ninety-one million, one hundred twenty-five thousand, four hundred seventy".