1047501161 has 4 divisors (see below), whose sum is σ = 1197144192. Its totient is φ = 897858132.

The previous prime is 1047501149. The next prime is 1047501197. The reversal of 1047501161 is 1611057401.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1611057401 = 9601 ⋅167801.

It is a cyclic number.

It is not a de Polignac number, because 1047501161 - 2⁶ = 1047501097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1047501161.

It is not an unprimeable number, because it can be changed into a prime (1047501101) 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 3 ways as a sum of consecutive naturals, for example, 74821505 + ... + 74821518.

It is an arithmetic number, because the mean of its divisors is an integer number (299286048).

Almost surely, 2^1047501161 is an apocalyptic number.

It is an amenable number.

1047501161 is a deficient number, since it is larger than the sum of its proper divisors (149643031).

1047501161 is an equidigital number, since it uses as much as digits as its factorization.

1047501161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149643030.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1047501161 is about 32365.1226013436. The cubic root of 1047501161 is about 1015.5894271924.

Adding to 1047501161 its reverse (1611057401), we get a palindrome (2658558562).

The spelling of 1047501161 in words is "one billion, forty-seven million, five hundred one thousand, one hundred sixty-one".