1201140542 has 32 divisors (see below), whose sum is σ = 2200271040. Its totient is φ = 480038400.

The previous prime is 1201140541. The next prime is 1201140547. The reversal of 1201140542 is 2450411021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201140541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2792 + ... + 49092.

It is an arithmetic number, because the mean of its divisors is an integer number (68758470).

Almost surely, 2^1201140542 is an apocalyptic number.

1201140542 is a deficient number, since it is larger than the sum of its proper divisors (999130498).

1201140542 is a wasteful number, since it uses less digits than its factorization.

1201140542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46436.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1201140542 is about 34657.4745473469. The cubic root of 1201140542 is about 1062.9951311126.

Adding to 1201140542 its reverse (2450411021), we get a palindrome (3651551563).

The spelling of 1201140542 in words is "one billion, two hundred one million, one hundred forty thousand, five hundred forty-two".