2136457 has 2 divisors, whose sum is σ = 2136458. Its totient is φ = 2136456.

The previous prime is 2136451. The next prime is 2136473. The reversal of 2136457 is 7546312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2134521 + 1936 = 1461^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 2136457 - 2¹¹ = 2134409 is a prime.

It is not a weakly prime, because it can be changed into another prime (2136451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068228 + 1068229.

It is an arithmetic number, because the mean of its divisors is an integer number (1068229).

2^2136457 is an apocalyptic number.

It is an amenable number.

2136457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136457 is an equidigital number, since it uses as much as digits as its factorization.

2136457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 28.

The square root of 2136457 is about 1461.6624097239. The cubic root of 2136457 is about 128.7947178691.

It can be divided in two parts, 213 and 6457, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 2136457 in words is "two million, one hundred thirty-six thousand, four hundred fifty-seven".