513154242 has 96 divisors (see below), whose sum is σ = 1236643200. Its totient is φ = 153052416.

The previous prime is 513154207. The next prime is 513154247. The reversal of 513154242 is 242451315.

513154242 is a `hidden beast` number, since 51 + 31 + 542 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (513154247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 699708 + ... + 700440.

It is an arithmetic number, because the mean of its divisors is an integer number (12881700).

Almost surely, 2^513154242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513154242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618321600).

513154242 is an abundant number, since it is smaller than the sum of its proper divisors (723488958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513154242 is a wasteful number, since it uses less digits than its factorization.

513154242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 869 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 513154242 is about 22652.9080252404. The cubic root of 513154242 is about 800.6007165200.

The spelling of 513154242 in words is "five hundred thirteen million, one hundred fifty-four thousand, two hundred forty-two".