1151242770 has 16 divisors (see below), whose sum is σ = 2762982720. Its totient is φ = 306998064.

The previous prime is 1151242727. The next prime is 1151242789. The reversal of 1151242770 is 772421511.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 38374759 = 1151242770 / (1 + 1 + 5 + 1 + 2 + 4 + 2 + 7 + 7 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19187350 + ... + 19187409.

It is an arithmetic number, because the mean of its divisors is an integer number (172686420).

Almost surely, 2^1151242770 is an apocalyptic number.

1151242770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151242770 is an abundant number, since it is smaller than the sum of its proper divisors (1611739950).

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

1151242770 is a wasteful number, since it uses less digits than its factorization.

1151242770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38374769.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 1151242770 is about 33929.9686118334. The cubic root of 1151242770 is about 1048.0668193755.

The spelling of 1151242770 in words is "one billion, one hundred fifty-one million, two hundred forty-two thousand, seven hundred seventy".