1201773069 has 72 divisors (see below), whose sum is σ = 2128389120. Its totient is φ = 650244672.

The previous prime is 1201773049. The next prime is 1201773071. The reversal of 1201773069 is 9603771021.

It is a happy number.

It is not a de Polignac number, because 1201773069 - 2⁷ = 1201772941 is a prime.

It is a super-2 number, since 2×1201773069² = 2888517018747357522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201773029) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1105044 + ... + 1106130.

It is an arithmetic number, because the mean of its divisors is an integer number (29560960).

Almost surely, 2^1201773069 is an apocalyptic number.

It is an amenable number.

1201773069 is a deficient number, since it is larger than the sum of its proper divisors (926616051).

1201773069 is a wasteful number, since it uses less digits than its factorization.

1201773069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 1201773069 is about 34666.5987515360. The cubic root of 1201773069 is about 1063.1816913324.

The spelling of 1201773069 in words is "one billion, two hundred one million, seven hundred seventy-three thousand, sixty-nine".