1247901 has 8 divisors (see below), whose sum is σ = 1751520. Its totient is φ = 788112.

The previous prime is 1247893. The next prime is 1247923. The reversal of 1247901 is 1097421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1247901 - 2³ = 1247893 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10890 + ... + 11003.

It is an arithmetic number, because the mean of its divisors is an integer number (218940).

2^1247901 is an apocalyptic number.

It is an amenable number.

1247901 is a deficient number, since it is larger than the sum of its proper divisors (503619).

1247901 is a wasteful number, since it uses less digits than its factorization.

1247901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21915.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1247901 is about 1117.0948930149. The cubic root of 1247901 is about 107.6614052752.

The spelling of 1247901 in words is "one million, two hundred forty-seven thousand, nine hundred one".