1490555743 has 2 divisors, whose sum is σ = 1490555744. Its totient is φ = 1490555742.

The previous prime is 1490555723. The next prime is 1490555747. The reversal of 1490555743 is 3475550941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1490555743 - 2¹³ = 1490547551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1490555743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1490555747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745277871 + 745277872.

It is an arithmetic number, because the mean of its divisors is an integer number (745277872).

Almost surely, 2^1490555743 is an apocalyptic number.

1490555743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490555743 is an equidigital number, since it uses as much as digits as its factorization.

1490555743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 1490555743 is about 38607.7161070167. The cubic root of 1490555743 is about 1142.3067437870.

The spelling of 1490555743 in words is "one billion, four hundred ninety million, five hundred fifty-five thousand, seven hundred forty-three".