1072148477 has 2 divisors, whose sum is σ = 1072148478. Its totient is φ = 1072148476.

The previous prime is 1072148461. The next prime is 1072148479. The reversal of 1072148477 is 7748412701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717918436 + 354230041 = 26794^2 + 18821^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072148477 - 2⁴ = 1072148461 is a prime.

It is a super-2 number, since 2×1072148477² = 2299004713466839058, which contains 22 as substring.

Together with 1072148479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072148479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536074238 + 536074239.

It is an arithmetic number, because the mean of its divisors is an integer number (536074239).

Almost surely, 2^1072148477 is an apocalyptic number.

It is an amenable number.

1072148477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072148477 is an equidigital number, since it uses as much as digits as its factorization.

1072148477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 1072148477 is about 32743.6784280569. The cubic root of 1072148477 is about 1023.4932378821.

The spelling of 1072148477 in words is "one billion, seventy-two million, one hundred forty-eight thousand, four hundred seventy-seven".