1962157 has 4 divisors (see below), whose sum is σ = 2077596. Its totient is φ = 1846720.

The previous prime is 1962139. The next prime is 1962161. The reversal of 1962157 is 7512691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7512691 = 17 ⋅441923.

It can be written as a sum of positive squares in 2 ways, for example, as 1212201 + 749956 = 1101^2 + 866^2 .

It is a cyclic number.

It is not a de Polignac number, because 1962157 - 2¹⁹ = 1437869 is a prime.

It is a d-powerful number, because it can be written as 1 + 9⁴ + 6² + 2⁵ + 1 + 5⁹ + 7⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1962557) 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 3 ways as a sum of consecutive naturals, for example, 57694 + ... + 57727.

It is an arithmetic number, because the mean of its divisors is an integer number (519399).

2^1962157 is an apocalyptic number.

1962157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1962157 is a deficient number, since it is larger than the sum of its proper divisors (115439).

1962157 is a wasteful number, since it uses less digits than its factorization.

1962157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115438.

The product of its digits is 3780, while the sum is 31.

The square root of 1962157 is about 1400.7701453129. The cubic root of 1962157 is about 125.1923864145.

The spelling of 1962157 in words is "one million, nine hundred sixty-two thousand, one hundred fifty-seven".