142064670 has 32 divisors (see below), whose sum is σ = 371952000. Its totient is φ = 34439840.

The previous prime is 142064651. The next prime is 142064677. The reversal of 142064670 is 76460241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142064677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214920 + ... + 215579.

It is an arithmetic number, because the mean of its divisors is an integer number (11623500).

Almost surely, 2^142064670 is an apocalyptic number.

142064670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142064670 is an abundant number, since it is smaller than the sum of its proper divisors (229887330).

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

142064670 is a wasteful number, since it uses less digits than its factorization.

142064670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430520.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 142064670 is about 11919.0884718589. The cubic root of 142064670 is about 521.7895321568.

The spelling of 142064670 in words is "one hundred forty-two million, sixty-four thousand, six hundred seventy".