1051432249 has 24 divisors (see below), whose sum is σ = 1257453288. Its totient is φ = 876072960.

The previous prime is 1051432243. The next prime is 1051432267. The reversal of 1051432249 is 9422341501.

It can be written as a sum of positive squares in 4 ways, for example, as 59182249 + 992250000 = 7693^2 + 31500^2 .

It is not a de Polignac number, because 1051432249 - 2⁷ = 1051432121 is a prime.

It is a super-2 number, since 2×1051432249² = 2211019548474396002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051432249.

It is not an unprimeable number, because it can be changed into a prime (1051432243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 676257 + ... + 677809.

It is an arithmetic number, because the mean of its divisors is an integer number (52393887).

Almost surely, 2^1051432249 is an apocalyptic number.

It is an amenable number.

1051432249 is a deficient number, since it is larger than the sum of its proper divisors (206021039).

1051432249 is a wasteful number, since it uses less digits than its factorization.

1051432249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1051432249 is about 32425.7960426571. The cubic root of 1051432249 is about 1016.8582842025.

The spelling of 1051432249 in words is "one billion, fifty-one million, four hundred thirty-two thousand, two hundred forty-nine".