1493546451 has 8 divisors (see below), whose sum is σ = 1997678544. Its totient is φ = 992556000.

The previous prime is 1493546437. The next prime is 1493546479. The reversal of 1493546451 is 1546453941.

It is a happy number.

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

It is not a de Polignac number, because 1493546451 - 2⁷ = 1493546323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1493541451) 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, 784300 + ... + 786201.

It is an arithmetic number, because the mean of its divisors is an integer number (249709818).

Almost surely, 2^1493546451 is an apocalyptic number.

1493546451 is a deficient number, since it is larger than the sum of its proper divisors (504132093).

1493546451 is a wasteful number, since it uses less digits than its factorization.

1493546451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570821.

The product of its digits is 259200, while the sum is 42.

The square root of 1493546451 is about 38646.4286965820. The cubic root of 1493546451 is about 1143.0702226903.

The spelling of 1493546451 in words is "one billion, four hundred ninety-three million, five hundred forty-six thousand, four hundred fifty-one".