1201525600 has 72 divisors (see below), whose sum is σ = 3199904568. Its totient is φ = 436915200.

The previous prime is 1201525597. The next prime is 1201525607. The reversal of 1201525600 is 65251021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201525607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59469 + ... + 77068.

It is an arithmetic number, because the mean of its divisors is an integer number (44443119).

Almost surely, 2^1201525600 is an apocalyptic number.

1201525600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201525600 is an abundant number, since it is smaller than the sum of its proper divisors (1998378968).

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

1201525600 is a wasteful number, since it uses less digits than its factorization.

1201525600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136568 (or 136555 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1201525600 is about 34663.0292963555. The cubic root of 1201525600 is about 1063.1087095640.

Adding to 1201525600 its reverse (65251021), we get a palindrome (1266776621).

The spelling of 1201525600 in words is "one billion, two hundred one million, five hundred twenty-five thousand, six hundred".