142074457 has 32 divisors (see below), whose sum is σ = 186900480. Its totient is φ = 105027840.

The previous prime is 142074433. The next prime is 142074463. The reversal of 142074457 is 754470241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142074457 - 2⁷ = 142074329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142074407) 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, 69078 + ... + 71104.

It is an arithmetic number, because the mean of its divisors is an integer number (5840640).

Almost surely, 2^142074457 is an apocalyptic number.

142074457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

142074457 is a deficient number, since it is larger than the sum of its proper divisors (44826023).

142074457 is a wasteful number, since it uses less digits than its factorization.

142074457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101.

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 142074457 is about 11919.4990247074. The cubic root of 142074457 is about 521.8015141105.

The spelling of 142074457 in words is "one hundred forty-two million, seventy-four thousand, four hundred fifty-seven".