142499967 has 8 divisors (see below), whose sum is σ = 201176496. Its totient is φ = 89411712.

The previous prime is 142499957. The next prime is 142499977. The reversal of 142499967 is 769994241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142499957) and next prime (142499977).

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

It is not a de Polignac number, because 142499967 - 2¹⁰ = 142498943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 2794117 = 142499967 / (1 + 4 + 2 + 4 + 9 + 9 + 9 + 6 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142499957) 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, 1397008 + ... + 1397109.

It is an arithmetic number, because the mean of its divisors is an integer number (25147062).

Almost surely, 2^142499967 is an apocalyptic number.

142499967 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142499967 is a deficient number, since it is larger than the sum of its proper divisors (58676529).

142499967 is a wasteful number, since it uses less digits than its factorization.

142499967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794137.

The product of its digits is 979776, while the sum is 51.

The square root of 142499967 is about 11937.3350040953. The cubic root of 142499967 is about 522.3219230916.

The spelling of 142499967 in words is "one hundred forty-two million, four hundred ninety-nine thousand, nine hundred sixty-seven".