1201455234 has 128 divisors (see below), whose sum is σ = 3238963200. Its totient is φ = 322470720.

The previous prime is 1201455223. The next prime is 1201455271. The reversal of 1201455234 is 4325541021.

1201455234 = 6537² + 6538² + ... + 6564².

1201455234 is a `hidden beast` number, since 1 + 201 + 455 + 2 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1201455198 and 1201455207.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 940204 + ... + 941480.

It is an arithmetic number, because the mean of its divisors is an integer number (25304400).

Almost surely, 2^1201455234 is an apocalyptic number.

1201455234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201455234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619481600).

1201455234 is an abundant number, since it is smaller than the sum of its proper divisors (2037507966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201455234 is a wasteful number, since it uses less digits than its factorization.

1201455234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1201455234 is about 34662.0142807656. The cubic root of 1201455234 is about 1063.0879559022.

Adding to 1201455234 its reverse (4325541021), we get a palindrome (5526996255).

The spelling of 1201455234 in words is "one billion, two hundred one million, four hundred fifty-five thousand, two hundred thirty-four".