142170040 has 32 divisors (see below), whose sum is σ = 327325680. Its totient is φ = 55544832.

The previous prime is 142170037. The next prime is 142170043. The reversal of 142170040 is 40071241.

It is an interprime number because it is at equal distance from previous prime (142170037) and next prime (142170043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142170043) 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, 39609 + ... + 43048.

Almost surely, 2^142170040 is an apocalyptic number.

142170040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142170040 is an abundant number, since it is smaller than the sum of its proper divisors (185155640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142170040 is a wasteful number, since it uses less digits than its factorization.

142170040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82711 (or 82707 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 142170040 is about 11923.5078731051. The cubic root of 142170040 is about 521.9185048174.

The spelling of 142170040 in words is "one hundred forty-two million, one hundred seventy thousand, forty".