2137455 has 32 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 1118880.

The previous prime is 2137451. The next prime is 2137483. The reversal of 2137455 is 5547312.

It is a happy number.

It is not a de Polignac number, because 2137455 - 2² = 2137451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9474 + ... + 9696.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2^2137455 is an apocalyptic number.

2137455 is a deficient number, since it is larger than the sum of its proper divisors (1733265).

2137455 is a wasteful number, since it uses less digits than its factorization.

2137455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 302 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 2137455 is about 1462.0037619651. The cubic root of 2137455 is about 128.8147693093.

The spelling of 2137455 in words is "two million, one hundred thirty-seven thousand, four hundred fifty-five".