1048618157 has 4 divisors (see below), whose sum is σ = 1110301596. Its totient is φ = 986934720.

The previous prime is 1048618127. The next prime is 1048618159. The reversal of 1048618157 is 7518168401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 518973961 + 529644196 = 22781^2 + 23014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1048618157 - 2⁸ = 1048617901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048618159) 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, 30841694 + ... + 30841727.

It is an arithmetic number, because the mean of its divisors is an integer number (277575399).

Almost surely, 2^1048618157 is an apocalyptic number.

1048618157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1048618157 is a deficient number, since it is larger than the sum of its proper divisors (61683439).

1048618157 is an equidigital number, since it uses as much as digits as its factorization.

1048618157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61683438.

The product of its (nonzero) digits is 53760, while the sum is 41.

The square root of 1048618157 is about 32382.3741717620. The cubic root of 1048618157 is about 1015.9502879995.

The spelling of 1048618157 in words is "one billion, forty-eight million, six hundred eighteen thousand, one hundred fifty-seven".