1201214789 has 8 divisors (see below), whose sum is σ = 1270859040. Its totient is φ = 1132212816.

The previous prime is 1201214783. The next prime is 1201214821. The reversal of 1201214789 is 9874121021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201214789 - 2⁸ = 1201214533 is a prime.

It is a super-3 number, since 3×1201214789³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201214783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156719 + ... + 164204.

It is an arithmetic number, because the mean of its divisors is an integer number (158857380).

Almost surely, 2^1201214789 is an apocalyptic number.

1201214789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1201214789 is a deficient number, since it is larger than the sum of its proper divisors (69644251).

1201214789 is a wasteful number, since it uses less digits than its factorization.

1201214789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321139.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1201214789 is about 34658.5456850111. The cubic root of 1201214789 is about 1063.0170332327.

The spelling of 1201214789 in words is "one billion, two hundred one million, two hundred fourteen thousand, seven hundred eighty-nine".