1125621741 has 8 divisors (see below), whose sum is σ = 1508606080. Its totient is φ = 746525952.

The previous prime is 1125621737. The next prime is 1125621743. The reversal of 1125621741 is 1471265211.

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

It is not a de Polignac number, because 1125621741 - 2² = 1125621737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125621699 and 1125621708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125621743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971461 + ... + 972618.

It is an arithmetic number, because the mean of its divisors is an integer number (188575760).

Almost surely, 2^1125621741 is an apocalyptic number.

It is an amenable number.

1125621741 is a deficient number, since it is larger than the sum of its proper divisors (382984339).

1125621741 is a wasteful number, since it uses less digits than its factorization.

1125621741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944275.

The product of its digits is 3360, while the sum is 30.

The square root of 1125621741 is about 33550.2867498923. The cubic root of 1125621741 is about 1040.2334722997.

Adding to 1125621741 its reverse (1471265211), we get a palindrome (2596886952).

The spelling of 1125621741 in words is "one billion, one hundred twenty-five million, six hundred twenty-one thousand, seven hundred forty-one".