1538157 has 8 divisors (see below), whose sum is σ = 2058400. Its totient is φ = 1021680.

The previous prime is 1538111. The next prime is 1538167. The reversal of 1538157 is 7518351.

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

It is not a de Polignac number, because 1538157 - 2⁶ = 1538093 is a prime.

It is a Duffinian number.

1538157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219 + ... + 1767.

It is an arithmetic number, because the mean of its divisors is an integer number (257300).

2^1538157 is an apocalyptic number.

It is an amenable number.

1538157 is a deficient number, since it is larger than the sum of its proper divisors (520243).

1538157 is a wasteful number, since it uses less digits than its factorization.

1538157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883.

The product of its digits is 4200, while the sum is 30.

The square root of 1538157 is about 1240.2245764377. The cubic root of 1538157 is about 115.4339496043.

The spelling of 1538157 in words is "one million, five hundred thirty-eight thousand, one hundred fifty-seven".