1201544150 has 36 divisors (see below), whose sum is σ = 2336316612. Its totient is φ = 459711120.

The previous prime is 1201544129. The next prime is 1201544171. The reversal of 1201544150 is 514451021.

It is an interprime number because it is at equal distance from previous prime (1201544129) and next prime (1201544171).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3737 + ... + 49163.

Almost surely, 2^1201544150 is an apocalyptic number.

1201544150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201544150 is a deficient number, since it is larger than the sum of its proper divisors (1134772462).

1201544150 is a wasteful number, since it uses less digits than its factorization.

1201544150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45485 (or 45457 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1201544150 is about 34663.2968714749. The cubic root of 1201544150 is about 1063.1141805433.

Adding to 1201544150 its reverse (514451021), we get a palindrome (1715995171).

It can be divided in two parts, 12015 and 44150, that added together give a palindrome (56165).

The spelling of 1201544150 in words is "one billion, two hundred one million, five hundred forty-four thousand, one hundred fifty".