1945047 has 16 divisors (see below), whose sum is σ = 2848608. Its totient is φ = 1173120.

The previous prime is 1945043. The next prime is 1945051. The reversal of 1945047 is 7405491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1945043) and next prime (1945051).

It is not a de Polignac number, because 1945047 - 2² = 1945043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1597 + ... + 2537.

It is an arithmetic number, because the mean of its divisors is an integer number (178038).

2^1945047 is an apocalyptic number.

1945047 is a deficient number, since it is larger than the sum of its proper divisors (903561).

1945047 is a wasteful number, since it uses less digits than its factorization.

1945047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1945047 is about 1394.6494183127. The cubic root of 1945047 is about 124.8274312030.

The spelling of 1945047 in words is "one million, nine hundred forty-five thousand, forty-seven".