142451697 has 8 divisors (see below), whose sum is σ = 189994240. Its totient is φ = 94938480.

The previous prime is 142451693. The next prime is 142451707. The reversal of 142451697 is 796154241.

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

It is not a de Polignac number, because 142451697 - 2² = 142451693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142451693) 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, 9579 + ... + 19407.

It is an arithmetic number, because the mean of its divisors is an integer number (23749280).

Almost surely, 2^142451697 is an apocalyptic number.

It is an amenable number.

142451697 is a deficient number, since it is larger than the sum of its proper divisors (47542543).

142451697 is an equidigital number, since it uses as much as digits as its factorization.

142451697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14663.

The product of its digits is 60480, while the sum is 39.

The square root of 142451697 is about 11935.3130248017. The cubic root of 142451697 is about 522.2629398579.

The spelling of 142451697 in words is "one hundred forty-two million, four hundred fifty-one thousand, six hundred ninety-seven".