1244157 has 8 divisors (see below), whose sum is σ = 1667040. Its totient is φ = 825360.

The previous prime is 1244153. The next prime is 1244167. The reversal of 1244157 is 7514421.

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

It is not a de Polignac number, because 1244157 - 2² = 1244153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244153) 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, 219 + ... + 1592.

It is an arithmetic number, because the mean of its divisors is an integer number (208380).

2^1244157 is an apocalyptic number.

It is an amenable number.

1244157 is a deficient number, since it is larger than the sum of its proper divisors (422883).

1244157 is a wasteful number, since it uses less digits than its factorization.

1244157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043.

The product of its digits is 1120, while the sum is 24.

The square root of 1244157 is about 1115.4178589210. The cubic root of 1244157 is about 107.5536274705.

Adding to 1244157 its reverse (7514421), we get a palindrome (8758578).

The spelling of 1244157 in words is "one million, two hundred forty-four thousand, one hundred fifty-seven".