1490469751 has 2 divisors, whose sum is σ = 1490469752. Its totient is φ = 1490469750.

The previous prime is 1490469737. The next prime is 1490469787. The reversal of 1490469751 is 1579640941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1490469751 - 2⁵ = 1490469719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1490469451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745234875 + 745234876.

It is an arithmetic number, because the mean of its divisors is an integer number (745234876).

Almost surely, 2^1490469751 is an apocalyptic number.

1490469751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490469751 is an equidigital number, since it uses as much as digits as its factorization.

1490469751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1490469751 is about 38606.6024275641. The cubic root of 1490469751 is about 1142.2847763361.

The spelling of 1490469751 in words is "one billion, four hundred ninety million, four hundred sixty-nine thousand, seven hundred fifty-one".