142450031 has 8 divisors (see below), whose sum is σ = 146451984. Its totient is φ = 138473280.

The previous prime is 142449977. The next prime is 142450043. The reversal of 142450031 is 130054241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142450031 is a prime.

It is a super-2 number, since 2×142450031² = 40584022663801922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142449985 and 142450012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142450051) 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, 5465 + ... + 17741.

It is an arithmetic number, because the mean of its divisors is an integer number (18306498).

Almost surely, 2^142450031 is an apocalyptic number.

142450031 is a deficient number, since it is larger than the sum of its proper divisors (4001953).

142450031 is a wasteful number, since it uses less digits than its factorization.

142450031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12601.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 142450031 is about 11935.2432317067. The cubic root of 142450031 is about 522.2609038614.

The spelling of 142450031 in words is "one hundred forty-two million, four hundred fifty thousand, thirty-one".