1061919465 has 16 divisors (see below), whose sum is σ = 1727870400. Its totient is φ = 556757312.

The previous prime is 1061919461. The next prime is 1061919473. The reversal of 1061919465 is 5649191601.

It is a cyclic number.

It is not a de Polignac number, because 1061919465 - 2² = 1061919461 is a prime.

It is a super-2 number, since 2×1061919465² = 2255345900291772450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1061919461) 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 15 ways as a sum of consecutive naturals, for example, 599070 + ... + 600839.

It is an arithmetic number, because the mean of its divisors is an integer number (107991900).

Almost surely, 2^1061919465 is an apocalyptic number.

1061919465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1061919465 is a deficient number, since it is larger than the sum of its proper divisors (665950935).

1061919465 is a wasteful number, since it uses less digits than its factorization.

1061919465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199976.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 1061919465 is about 32587.1058088932. The cubic root of 1061919465 is about 1020.2278950607.

The spelling of 1061919465 in words is "one billion, sixty-one million, nine hundred nineteen thousand, four hundred sixty-five".