1648157 has 16 divisors (see below), whose sum is σ = 2039040. Its totient is φ = 1300992.

The previous prime is 1648081. The next prime is 1648181. The reversal of 1648157 is 7518461.

It is a happy number.

It is not a de Polignac number, because 1648157 - 2¹² = 1644061 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4493 + ... + 4845.

It is an arithmetic number, because the mean of its divisors is an integer number (127440).

2^1648157 is an apocalyptic number.

It is an amenable number.

1648157 is a deficient number, since it is larger than the sum of its proper divisors (390883).

1648157 is a wasteful number, since it uses less digits than its factorization.

1648157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412.

The product of its digits is 6720, while the sum is 32.

The square root of 1648157 is about 1283.8056706527. The cubic root of 1648157 is about 118.1225624946.

The spelling of 1648157 in words is "one million, six hundred forty-eight thousand, one hundred fifty-seven".