2119957 has 4 divisors (see below), whose sum is σ = 2422816. Its totient is φ = 1817100.

The previous prime is 2119939. The next prime is 2119967. The reversal of 2119957 is 7599112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2119957 - 2⁷ = 2119829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151419 + ... + 151432.

It is an arithmetic number, because the mean of its divisors is an integer number (605704).

2^2119957 is an apocalyptic number.

It is an amenable number.

2119957 is a deficient number, since it is larger than the sum of its proper divisors (302859).

2119957 is an equidigital number, since it uses as much as digits as its factorization.

2119957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302858.

The product of its digits is 5670, while the sum is 34.

The square root of 2119957 is about 1456.0072115206. The cubic root of 2119957 is about 128.4622972251.

The spelling of 2119957 in words is "two million, one hundred nineteen thousand, nine hundred fifty-seven".