1143770520 has 32 divisors (see below), whose sum is σ = 3431311920. Its totient is φ = 305005440.

The previous prime is 1143770483. The next prime is 1143770539. The reversal of 1143770520 is 250773411.

It is a super-2 number, since 2×1143770520² = 2616422004842140800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 4765591 + ... + 4765830.

Almost surely, 2^1143770520 is an apocalyptic number.

1143770520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143770520 is an abundant number, since it is smaller than the sum of its proper divisors (2287541400).

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

1143770520 is a wasteful number, since it uses less digits than its factorization.

1143770520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9531435 (or 9531431 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1143770520 is about 33819.6765212206. The cubic root of 1143770520 is about 1045.7943701651.

The spelling of 1143770520 in words is "one billion, one hundred forty-three million, seven hundred seventy thousand, five hundred twenty".