201078057 has 16 divisors (see below), whose sum is σ = 286051392. Its totient is φ = 125199360.

The previous prime is 201078047. The next prime is 201078067. The reversal of 201078057 is 750870102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201078047) and next prime (201078067).

It is not a de Polignac number, because 201078057 - 2²⁰ = 200029481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201078037) 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, 8368 + ... + 21729.

It is an arithmetic number, because the mean of its divisors is an integer number (17878212).

Almost surely, 2^201078057 is an apocalyptic number.

It is an amenable number.

201078057 is a deficient number, since it is larger than the sum of its proper divisors (84973335).

201078057 is a wasteful number, since it uses less digits than its factorization.

201078057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30248.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 201078057 is about 14180.1994696831. The cubic root of 201078057 is about 585.8524179210.

The spelling of 201078057 in words is "two hundred one million, seventy-eight thousand, fifty-seven".