1490645047 has 2 divisors, whose sum is σ = 1490645048. Its totient is φ = 1490645046.

The previous prime is 1490645033. The next prime is 1490645053. The reversal of 1490645047 is 7405460941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1490645047 is a prime.

It is a super-2 number, since 2×1490645047² = 4444045312291264418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1490645647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745322523 + 745322524.

It is an arithmetic number, because the mean of its divisors is an integer number (745322524).

Almost surely, 2^1490645047 is an apocalyptic number.

1490645047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490645047 is an equidigital number, since it uses as much as digits as its factorization.

1490645047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1490645047 is about 38608.8726460641. The cubic root of 1490645047 is about 1142.3295564247.

The spelling of 1490645047 in words is "one billion, four hundred ninety million, six hundred forty-five thousand, forty-seven".