1969149051 has 6 divisors (see below), whose sum is σ = 2844326420. Its totient is φ = 1312766028.

The previous prime is 1969149041. The next prime is 1969149167. The reversal of 1969149051 is 1509419691.

It is not a de Polignac number, because 1969149051 - 2¹⁴ = 1969132667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1969148988 and 1969149006.

It is not an unprimeable number, because it can be changed into a prime (1969149001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109397161 + ... + 109397178.

Almost surely, 2^1969149051 is an apocalyptic number.

1969149051 is a deficient number, since it is larger than the sum of its proper divisors (875177369).

1969149051 is a wasteful number, since it uses less digits than its factorization.

1969149051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218794345 (or 218794342 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 1969149051 is about 44375.0949407435. The cubic root of 1969149051 is about 1253.4091578746.

The spelling of 1969149051 in words is "one billion, nine hundred sixty-nine million, one hundred forty-nine thousand, fifty-one".