1071187953 has 12 divisors (see below), whose sum is σ = 1569895824. Its totient is φ = 649204600.

The previous prime is 1071187927. The next prime is 1071187963. The reversal of 1071187953 is 3597811701.

It is a happy number.

It is not a de Polignac number, because 1071187953 - 2¹² = 1071183857 is a prime.

It is a super-2 number, since 2×1071187953² = 2294887261304660418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071187903) 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 11 ways as a sum of consecutive naturals, for example, 1475103 + ... + 1475828.

It is an arithmetic number, because the mean of its divisors is an integer number (130824652).

Almost surely, 2^1071187953 is an apocalyptic number.

It is an amenable number.

1071187953 is a deficient number, since it is larger than the sum of its proper divisors (498707871).

1071187953 is a wasteful number, since it uses less digits than its factorization.

1071187953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950956 (or 2950945 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 42.

The square root of 1071187953 is about 32729.0078218085. The cubic root of 1071187953 is about 1023.1875017628.

The spelling of 1071187953 in words is "one billion, seventy-one million, one hundred eighty-seven thousand, nine hundred fifty-three".