1491546245 has 16 divisors (see below), whose sum is σ = 2111536128. Its totient is φ = 989781120.

The previous prime is 1491546233. The next prime is 1491546317. The reversal of 1491546245 is 5426451941.

It is not a de Polignac number, because 1491546245 - 2⁴ = 1491546229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686264 + ... + 688433.

It is an arithmetic number, because the mean of its divisors is an integer number (131971008).

Almost surely, 2^1491546245 is an apocalyptic number.

It is an amenable number.

1491546245 is a deficient number, since it is larger than the sum of its proper divisors (619989883).

1491546245 is a wasteful number, since it uses less digits than its factorization.

1491546245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374740.

The product of its digits is 172800, while the sum is 41.

The square root of 1491546245 is about 38620.5417491780. The cubic root of 1491546245 is about 1142.5597157825.

The spelling of 1491546245 in words is "one billion, four hundred ninety-one million, five hundred forty-six thousand, two hundred forty-five".