2155377 has 16 divisors (see below), whose sum is σ = 3307392. Its totient is φ = 1223040.

The previous prime is 2155333. The next prime is 2155381. The reversal of 2155377 is 7735512.

It is not a de Polignac number, because 2155377 - 2⁸ = 2155121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2155327) 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, 3877 + ... + 4397.

It is an arithmetic number, because the mean of its divisors is an integer number (206712).

2^2155377 is an apocalyptic number.

It is an amenable number.

2155377 is a deficient number, since it is larger than the sum of its proper divisors (1152015).

2155377 is a wasteful number, since it uses less digits than its factorization.

2155377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its digits is 7350, while the sum is 30.

The square root of 2155377 is about 1468.1202266844. The cubic root of 2155377 is about 129.1737937564.

The spelling of 2155377 in words is "two million, one hundred fifty-five thousand, three hundred seventy-seven".