142419669 has 32 divisors (see below), whose sum is σ = 221195520. Its totient is φ = 79833600.

The previous prime is 142419661. The next prime is 142419671. The reversal of 142419669 is 966914241.

It is not a de Polignac number, because 142419669 - 2³ = 142419661 is a prime.

It is a super-2 number, since 2×142419669² = 40566724236139122, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142419669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142419661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338079 + ... + 338499.

It is an arithmetic number, because the mean of its divisors is an integer number (6912360).

Almost surely, 2^142419669 is an apocalyptic number.

It is an amenable number.

142419669 is a deficient number, since it is larger than the sum of its proper divisors (78775851).

142419669 is a wasteful number, since it uses less digits than its factorization.

142419669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701.

The product of its digits is 93312, while the sum is 42.

The square root of 142419669 is about 11933.9712166571. The cubic root of 142419669 is about 522.2237960836.

The spelling of 142419669 in words is "one hundred forty-two million, four hundred nineteen thousand, six hundred sixty-nine".