214155557 has 16 divisors (see below), whose sum is σ = 267620352. Its totient is φ = 166486320.

The previous prime is 214155499. The next prime is 214155559. The reversal of 214155557 is 755551412.

It is not a de Polignac number, because 214155557 - 2¹⁰ = 214154533 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214155559) 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, 32648 + ... + 38654.

It is an arithmetic number, because the mean of its divisors is an integer number (16726272).

Almost surely, 2^214155557 is an apocalyptic number.

It is an amenable number.

214155557 is a deficient number, since it is larger than the sum of its proper divisors (53464795).

214155557 is a wasteful number, since it uses less digits than its factorization.

214155557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6488.

The product of its digits is 35000, while the sum is 35.

The square root of 214155557 is about 14634.0547012781. The cubic root of 214155557 is about 598.2872981465.

The spelling of 214155557 in words is "two hundred fourteen million, one hundred fifty-five thousand, five hundred fifty-seven".