4142656531 has 4 divisors (see below), whose sum is σ = 4461322432. Its totient is φ = 3823990632.

The previous prime is 4142656519. The next prime is 4142656537. The reversal of 4142656531 is 1356562414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1356562414 = 2 ⋅678281207.

It is a cyclic number.

It is not a de Polignac number, because 4142656531 - 2⁷ = 4142656403 is a prime.

It is a super-2 number, since 2×4142656531² = 34323206267673907922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4142656537) 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, 159332931 + ... + 159332956.

It is an arithmetic number, because the mean of its divisors is an integer number (1115330608).

Almost surely, 2^4142656531 is an apocalyptic number.

4142656531 is a deficient number, since it is larger than the sum of its proper divisors (318665901).

4142656531 is a wasteful number, since it uses less digits than its factorization.

4142656531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318665900.

The product of its digits is 86400, while the sum is 37.

The square root of 4142656531 is about 64363.4720241225. The cubic root of 4142656531 is about 1606.0521474703.

The spelling of 4142656531 in words is "four billion, one hundred forty-two million, six hundred fifty-six thousand, five hundred thirty-one".