1274157 has 16 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 828000.

The previous prime is 1274149. The next prime is 1274183. The reversal of 1274157 is 7514721.

It is not a de Polignac number, because 1274157 - 2³ = 1274149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1274157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532 + ... + 1682.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2^1274157 is an apocalyptic number.

It is an amenable number.

1274157 is a deficient number, since it is larger than the sum of its proper divisors (661203).

1274157 is a wasteful number, since it uses less digits than its factorization.

1274157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1195 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 1274157 is about 1128.7856306669. The cubic root of 1274157 is about 108.4112407383.

Adding to 1274157 its reverse (7514721), we get a palindrome (8788878).

It can be divided in two parts, 1274 and 157, that added together give a triangular number (1431 = T₅₃).

The spelling of 1274157 in words is "one million, two hundred seventy-four thousand, one hundred fifty-seven".