1125002761 has 8 divisors (see below), whose sum is σ = 1191534624. Its totient is φ = 1058510400.

The previous prime is 1125002743. The next prime is 1125002773. The reversal of 1125002761 is 1672005211.

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

It is a cyclic number.

It is not a de Polignac number, because 1125002761 - 2¹¹ = 1125000713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1125002261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65086 + ... + 80536.

It is an arithmetic number, because the mean of its divisors is an integer number (148941828).

Almost surely, 2^1125002761 is an apocalyptic number.

It is an amenable number.

1125002761 is a deficient number, since it is larger than the sum of its proper divisors (66531863).

1125002761 is a wasteful number, since it uses less digits than its factorization.

1125002761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19751.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1125002761 is about 33541.0608210295. The cubic root of 1125002761 is about 1040.0427623566.

Adding to 1125002761 its reverse (1672005211), we get a palindrome (2797007972).

The spelling of 1125002761 in words is "one billion, one hundred twenty-five million, two thousand, seven hundred sixty-one".