1501420747 has 2 divisors, whose sum is σ = 1501420748. Its totient is φ = 1501420746.

The previous prime is 1501420733. The next prime is 1501420751. The reversal of 1501420747 is 7470241051.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1501420747 - 2⁷ = 1501420619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1501420787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750710373 + 750710374.

It is an arithmetic number, because the mean of its divisors is an integer number (750710374).

Almost surely, 2^1501420747 is an apocalyptic number.

1501420747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1501420747 is an equidigital number, since it uses as much as digits as its factorization.

1501420747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 1501420747 is about 38748.1708858625. The cubic root of 1501420747 is about 1145.0755394694.

Adding to 1501420747 its reverse (7470241051), we get a palindrome (8971661798).

The spelling of 1501420747 in words is "one billion, five hundred one million, four hundred twenty thousand, seven hundred forty-seven".