1071148454 has 4 divisors (see below), whose sum is σ = 1606722684. Its totient is φ = 535574226.

The previous prime is 1071148453. The next prime is 1071148489. The reversal of 1071148454 is 4548411701.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1071148454² = 2294718021013180232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071148453) 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 as a sum of consecutive naturals, namely, 267787112 + ... + 267787115.

It is an arithmetic number, because the mean of its divisors is an integer number (401680671).

Almost surely, 2^1071148454 is an apocalyptic number.

1071148454 is a deficient number, since it is larger than the sum of its proper divisors (535574230).

1071148454 is an equidigital number, since it uses as much as digits as its factorization.

1071148454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535574229.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 1071148454 is about 32728.4043912929. The cubic root of 1071148454 is about 1023.1749252646.

The spelling of 1071148454 in words is "one billion, seventy-one million, one hundred forty-eight thousand, four hundred fifty-four".