142051911 has 4 divisors (see below), whose sum is σ = 189402552. Its totient is φ = 94701272.

The previous prime is 142051829. The next prime is 142051939. The reversal of 142051911 is 119150241.

It is a happy number.

142051911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142051911 - 2¹³ = 142043719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142051411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23675316 + ... + 23675321.

It is an arithmetic number, because the mean of its divisors is an integer number (47350638).

Almost surely, 2^142051911 is an apocalyptic number.

142051911 is a deficient number, since it is larger than the sum of its proper divisors (47350641).

142051911 is an equidigital number, since it uses as much as digits as its factorization.

142051911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47350640.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 142051911 is about 11918.5532259583. The cubic root of 142051911 is about 521.7739108393.

The spelling of 142051911 in words is "one hundred forty-two million, fifty-one thousand, nine hundred eleven".