1490253815 has 4 divisors (see below), whose sum is σ = 1788304584. Its totient is φ = 1192203048.

The previous prime is 1490253803. The next prime is 1490253839. The reversal of 1490253815 is 5183520941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5183520941 = 22699 ⋅228359.

It is a cyclic number.

It is not a de Polignac number, because 1490253815 - 2¹⁶ = 1490188279 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 3 ways as a sum of consecutive naturals, for example, 149025377 + ... + 149025386.

It is an arithmetic number, because the mean of its divisors is an integer number (447076146).

Almost surely, 2^1490253815 is an apocalyptic number.

1490253815 is a deficient number, since it is larger than the sum of its proper divisors (298050769).

1490253815 is an equidigital number, since it uses as much as digits as its factorization.

1490253815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298050768.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1490253815 is about 38603.8057061736. The cubic root of 1490253815 is about 1142.2296097646.

The spelling of 1490253815 in words is "one billion, four hundred ninety million, two hundred fifty-three thousand, eight hundred fifteen".