142941377 has 4 divisors (see below), whose sum is σ = 147870420. Its totient is φ = 138012336.

The previous prime is 142941367. The next prime is 142941413. The reversal of 142941377 is 773149241.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 117700801 + 25240576 = 10849^2 + 5024^2 .

It is a cyclic number.

It is not a de Polignac number, because 142941377 - 2¹⁰ = 142940353 is a prime.

It is a super-2 number, since 2×142941377² = 40864474517312258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142941377.

It is not an unprimeable number, because it can be changed into a prime (142941307) 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, 2464478 + ... + 2464535.

It is an arithmetic number, because the mean of its divisors is an integer number (36967605).

Almost surely, 2^142941377 is an apocalyptic number.

It is an amenable number.

142941377 is a deficient number, since it is larger than the sum of its proper divisors (4929043).

142941377 is an equidigital number, since it uses as much as digits as its factorization.

142941377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929042.

The product of its digits is 42336, while the sum is 38.

The square root of 142941377 is about 11955.8093410693. The cubic root of 142941377 is about 522.8606845469.

The spelling of 142941377 in words is "one hundred forty-two million, nine hundred forty-one thousand, three hundred seventy-seven".