1157519890 has 8 divisors (see below), whose sum is σ = 2083535820. Its totient is φ = 463007952.

The previous prime is 1157519863. The next prime is 1157519903. The reversal of 1157519890 is 989157511.

It can be written as a sum of positive squares in 2 ways, for example, as 1157292361 + 227529 = 34019^2 + 477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1157519890² = 2679704591491224200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1157519890.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57875985 + ... + 57876004.

Almost surely, 2^1157519890 is an apocalyptic number.

1157519890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157519890 is a deficient number, since it is larger than the sum of its proper divisors (926015930).

1157519890 is a wasteful number, since it uses less digits than its factorization.

1157519890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115751996.

The product of its (nonzero) digits is 113400, while the sum is 46.

The square root of 1157519890 is about 34022.3439815660. The cubic root of 1157519890 is about 1049.9682197486.

The spelling of 1157519890 in words is "one billion, one hundred fifty-seven million, five hundred nineteen thousand, eight hundred ninety".