1140421275 has 120 divisors (see below), whose sum is σ = 2471698944. Its totient is φ = 508939200.

The previous prime is 1140421267. The next prime is 1140421277. The reversal of 1140421275 is 5721240411.

It is not a de Polignac number, because 1140421275 - 2³ = 1140421267 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1140421277) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 608590 + ... + 610460.

Almost surely, 2^1140421275 is an apocalyptic number.

1140421275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1140421275 is an abundant number, since it is smaller than the sum of its proper divisors (1331277669).

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

1140421275 is a wasteful number, since it uses less digits than its factorization.

1140421275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1140421275 is about 33770.1240003646. The cubic root of 1140421275 is about 1044.7725900305.

Adding to 1140421275 its reverse (5721240411), we get a palindrome (6861661686).

The spelling of 1140421275 in words is "one billion, one hundred forty million, four hundred twenty-one thousand, two hundred seventy-five".