142767969 has 8 divisors (see below), whose sum is σ = 198633792. Its totient is φ = 91040400.

The previous prime is 142767967. The next prime is 142767979. The reversal of 142767969 is 969767241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142767969 - 2¹ = 142767967 is a prime.

It is a super-2 number, since 2×142767969² = 40765385944769922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142767967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034482 + ... + 1034619.

It is an arithmetic number, because the mean of its divisors is an integer number (24829224).

Almost surely, 2^142767969 is an apocalyptic number.

It is an amenable number.

142767969 is a deficient number, since it is larger than the sum of its proper divisors (55865823).

142767969 is a wasteful number, since it uses less digits than its factorization.

142767969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069127.

The product of its digits is 1143072, while the sum is 51.

The square root of 142767969 is about 11948.5551009317. Note that the first 3 decimals coincide. The cubic root of 142767969 is about 522.6491644663.

It can be divided in two parts, 1427 and 67969, that added together give a palindrome (69396).

The spelling of 142767969 in words is "one hundred forty-two million, seven hundred sixty-seven thousand, nine hundred sixty-nine".