142337661 has 4 divisors (see below), whose sum is σ = 189783552. Its totient is φ = 94891772.

The previous prime is 142337659. The next prime is 142337669. The reversal of 142337661 is 166733241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142337661 - 2¹ = 142337659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142337669) 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, 23722941 + ... + 23722946.

It is an arithmetic number, because the mean of its divisors is an integer number (47445888).

Almost surely, 2^142337661 is an apocalyptic number.

It is an amenable number.

142337661 is a deficient number, since it is larger than the sum of its proper divisors (47445891).

142337661 is an equidigital number, since it uses as much as digits as its factorization.

142337661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47445890.

The product of its digits is 18144, while the sum is 33.

The square root of 142337661 is about 11930.5348161765. The cubic root of 142337661 is about 522.1235413175.

The spelling of 142337661 in words is "one hundred forty-two million, three hundred thirty-seven thousand, six hundred sixty-one".