1051115157 has 32 divisors (see below), whose sum is σ = 1635413760. Its totient is φ = 665945280.

The previous prime is 1051115137. The next prime is 1051115159. The reversal of 1051115157 is 7515111501.

It is a happy number.

It is not a de Polignac number, because 1051115157 - 2⁸ = 1051114901 is a prime.

It is a super-2 number, since 2×1051115157² = 2209686146550269298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1051115157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051115159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92107 + ... + 102887.

It is an arithmetic number, because the mean of its divisors is an integer number (51106680).

Almost surely, 2^1051115157 is an apocalyptic number.

It is an amenable number.

1051115157 is a deficient number, since it is larger than the sum of its proper divisors (584298603).

1051115157 is a wasteful number, since it uses less digits than its factorization.

1051115157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10970 (or 10964 counting only the distinct ones).

The product of its (nonzero) digits is 875, while the sum is 27.

The square root of 1051115157 is about 32420.9061717898. The cubic root of 1051115157 is about 1016.7560522085.

Adding to 1051115157 its reverse (7515111501), we get a palindrome (8566226658).

The spelling of 1051115157 in words is "one billion, fifty-one million, one hundred fifteen thousand, one hundred fifty-seven".