142051031 has 8 divisors (see below), whose sum is σ = 152098560. Its totient is φ = 132191488.

The previous prime is 142051009. The next prime is 142051037. The reversal of 142051031 is 130150241.

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

It is a cyclic number.

It is not a de Polignac number, because 142051031 - 2²⁶ = 74942167 is a prime.

It is a super-2 number, since 2×142051031² = 40356990816325922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142051037) 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, 45431 + ... + 48456.

It is an arithmetic number, because the mean of its divisors is an integer number (19012320).

Almost surely, 2^142051031 is an apocalyptic number.

142051031 is a deficient number, since it is larger than the sum of its proper divisors (10047529).

142051031 is an equidigital number, since it uses as much as digits as its factorization.

142051031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93993.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 142051031 is about 11918.5163086686. The cubic root of 142051031 is about 521.7728333882.

The spelling of 142051031 in words is "one hundred forty-two million, fifty-one thousand, thirty-one".