1201147057 has 4 divisors (see below), whose sum is σ = 1310342256. Its totient is φ = 1091951860.

The previous prime is 1201147043. The next prime is 1201147061. The reversal of 1201147057 is 7507411021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1201147057 - 2⁷ = 1201146929 is a prime.

It is a super-2 number, since 2×1201147057² = 2885508505079522498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201147457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54597583 + ... + 54597604.

It is an arithmetic number, because the mean of its divisors is an integer number (327585564).

Almost surely, 2^1201147057 is an apocalyptic number.

It is an amenable number.

1201147057 is a deficient number, since it is larger than the sum of its proper divisors (109195199).

1201147057 is a wasteful number, since it uses less digits than its factorization.

1201147057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109195198.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 1201147057 is about 34657.5685384881. The cubic root of 1201147057 is about 1062.9970530083.

Adding to 1201147057 its reverse (7507411021), we get a palindrome (8708558078).

The spelling of 1201147057 in words is "one billion, two hundred one million, one hundred forty-seven thousand, fifty-seven".