1200155150 has 12 divisors (see below), whose sum is σ = 2232288672. Its totient is φ = 480062040.

The previous prime is 1200155147. The next prime is 1200155153. The reversal of 1200155150 is 515510021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1200155147) and next prime (1200155153).

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200155153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12001502 + ... + 12001601.

It is an arithmetic number, because the mean of its divisors is an integer number (186024056).

Almost surely, 2^1200155150 is an apocalyptic number.

1200155150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200155150 is a deficient number, since it is larger than the sum of its proper divisors (1032133522).

1200155150 is a wasteful number, since it uses less digits than its factorization.

1200155150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24003115 (or 24003110 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 1200155150 is about 34643.2554763550. The cubic root of 1200155150 is about 1062.7043648415.

Adding to 1200155150 its reverse (515510021), we get a palindrome (1715665171).

The spelling of 1200155150 in words is "one billion, two hundred million, one hundred fifty-five thousand, one hundred fifty".