57129141 has 4 divisors (see below), whose sum is σ = 76172192. Its totient is φ = 38086092.

The previous prime is 57129131. The next prime is 57129151. The reversal of 57129141 is 14192175.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (57129131) and next prime (57129151).

It is not a de Polignac number, because 57129141 - 2⁵ = 57129109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57129099 and 57129108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57129131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9521521 + ... + 9521526.

It is an arithmetic number, because the mean of its divisors is an integer number (19043048).

Almost surely, 2^57129141 is an apocalyptic number.

It is an amenable number.

57129141 is a deficient number, since it is larger than the sum of its proper divisors (19043051).

57129141 is a wasteful number, since it uses less digits than its factorization.

57129141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19043050.

The product of its digits is 2520, while the sum is 30.

The square root of 57129141 is about 7558.3821681627. The cubic root of 57129141 is about 385.1405367635.

The spelling of 57129141 in words is "fifty-seven million, one hundred twenty-nine thousand, one hundred forty-one".