1501139 has 2 divisors, whose sum is σ = 1501140. Its totient is φ = 1501138.

The previous prime is 1501081. The next prime is 1501169. The reversal of 1501139 is 9311051.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1501139 - 2¹² = 1497043 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1501139.

It is not a weakly prime, because it can be changed into another prime (1501169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750569 + 750570.

It is an arithmetic number, because the mean of its divisors is an integer number (750570).

2^1501139 is an apocalyptic number.

1501139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1501139 is an equidigital number, since it uses as much as digits as its factorization.

1501139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 1501139 is about 1225.2097779564. The cubic root of 1501139 is about 114.5003909142.

The spelling of 1501139 in words is "one million, five hundred one thousand, one hundred thirty-nine".