1250161 has 8 divisors (see below), whose sum is σ = 1411200. Its totient is φ = 1097040.

The previous prime is 1250149. The next prime is 1250173. The reversal of 1250161 is 1610521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1250149) and next prime (1250173).

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

It is a cyclic number.

It is not a de Polignac number, because 1250161 - 2¹¹ = 1248113 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1250141) 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, 1641 + ... + 2278.

It is an arithmetic number, because the mean of its divisors is an integer number (176400).

2^1250161 is an apocalyptic number.

1250161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1250161 is a deficient number, since it is larger than the sum of its proper divisors (161039).

1250161 is a wasteful number, since it uses less digits than its factorization.

1250161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1250161 is about 1118.1059878205. The cubic root of 1250161 is about 107.7263591562.

Adding to 1250161 its reverse (1610521), we get a palindrome (2860682).

The spelling of 1250161 in words is "one million, two hundred fifty thousand, one hundred sixty-one".