142911801 has 12 divisors (see below), whose sum is σ = 207332580. Its totient is φ = 94857120.

The previous prime is 142911799. The next prime is 142911803. The reversal of 142911801 is 108119241.

It is an interprime number because it is at equal distance from previous prime (142911799) and next prime (142911803).

It can be written as a sum of positive squares in 2 ways, for example, as 90725625 + 52186176 = 9525^2 + 7224^2 .

It is not a de Polignac number, because 142911801 - 2¹ = 142911799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142911803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32610 + ... + 36731.

It is an arithmetic number, because the mean of its divisors is an integer number (17277715).

Almost surely, 2^142911801 is an apocalyptic number.

It is an amenable number.

142911801 is a deficient number, since it is larger than the sum of its proper divisors (64420779).

142911801 is a wasteful number, since it uses less digits than its factorization.

142911801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69576 (or 69573 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 142911801 is about 11954.5723888393. The cubic root of 142911801 is about 522.8246203584.

The spelling of 142911801 in words is "one hundred forty-two million, nine hundred eleven thousand, eight hundred one".