1051131518 has 4 divisors (see below), whose sum is σ = 1576697280. Its totient is φ = 525565758.

The previous prime is 1051131493. The next prime is 1051131527. The reversal of 1051131518 is 8151311501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1051131518² = 2209754936265968648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262782878 + ... + 262782881.

It is an arithmetic number, because the mean of its divisors is an integer number (394174320).

Almost surely, 2^1051131518 is an apocalyptic number.

1051131518 is a deficient number, since it is larger than the sum of its proper divisors (525565762).

1051131518 is an equidigital number, since it uses as much as digits as its factorization.

1051131518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525565761.

The product of its (nonzero) digits is 600, while the sum is 26.

The square root of 1051131518 is about 32421.1584925647. The cubic root of 1051131518 is about 1016.7613275770.

The spelling of 1051131518 in words is "one billion, fifty-one million, one hundred thirty-one thousand, five hundred eighteen".