1125949461 has 16 divisors (see below), whose sum is σ = 1847712384. Its totient is φ = 593907264.

The previous prime is 1125949439. The next prime is 1125949463. The reversal of 1125949461 is 1649495211.

It is a happy number.

It is not a de Polignac number, because 1125949461 - 2¹⁴ = 1125933077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125949463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2061906 + ... + 2062451.

It is an arithmetic number, because the mean of its divisors is an integer number (115482024).

Almost surely, 2^1125949461 is an apocalyptic number.

It is an amenable number.

1125949461 is a deficient number, since it is larger than the sum of its proper divisors (721762923).

1125949461 is a wasteful number, since it uses less digits than its factorization.

1125949461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124380.

The product of its digits is 77760, while the sum is 42.

The square root of 1125949461 is about 33555.1704063621. The cubic root of 1125949461 is about 1040.3344156931.

The spelling of 1125949461 in words is "one billion, one hundred twenty-five million, nine hundred forty-nine thousand, four hundred sixty-one".