1520947 has 2 divisors, whose sum is σ = 1520948. Its totient is φ = 1520946.

The previous prime is 1520923. The next prime is 1520971. The reversal of 1520947 is 7490251.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1520923) and next prime (1520971).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1520947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1520347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760473 + 760474.

It is an arithmetic number, because the mean of its divisors is an integer number (760474).

2^1520947 is an apocalyptic number.

1520947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1520947 is an equidigital number, since it uses as much as digits as its factorization.

1520947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1520947 is about 1233.2668000072. The cubic root of 1520947 is about 115.0018147162.

The spelling of 1520947 in words is "one million, five hundred twenty thousand, nine hundred forty-seven".