1049967961 has 4 divisors (see below), whose sum is σ = 1199963392. Its totient is φ = 899972532.

The previous prime is 1049967959. The next prime is 1049967973. The reversal of 1049967961 is 1697699401.

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: 1697699401 = 1021 ⋅1662781.

It is a cyclic number.

It is not a de Polignac number, because 1049967961 - 2¹ = 1049967959 is a prime.

It is a super-2 number, since 2×1049967961² = 2204865438252995042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1049967899 and 1049967908.

It is not an unprimeable number, because it can be changed into a prime (1049967161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74997705 + ... + 74997718.

It is an arithmetic number, because the mean of its divisors is an integer number (299990848).

Almost surely, 2^1049967961 is an apocalyptic number.

It is an amenable number.

1049967961 is a deficient number, since it is larger than the sum of its proper divisors (149995431).

1049967961 is an equidigital number, since it uses as much as digits as its factorization.

1049967961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149995430.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 1049967961 is about 32403.2091157651. The cubic root of 1049967961 is about 1016.3860188294.

The spelling of 1049967961 in words is "one billion, forty-nine million, nine hundred sixty-seven thousand, nine hundred sixty-one".