142155345 has 32 divisors (see below), whose sum is σ = 231662592. Its totient is φ = 74424512.

The previous prime is 142155337. The next prime is 142155389. The reversal of 142155345 is 543551241.

It is a cyclic number.

It is not a de Polignac number, because 142155345 - 2³ = 142155337 is a prime.

It is a super-2 number, since 2×142155345² = 40416284224138050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282364 + ... + 282866.

It is an arithmetic number, because the mean of its divisors is an integer number (7239456).

Almost surely, 2^142155345 is an apocalyptic number.

142155345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142155345 is a deficient number, since it is larger than the sum of its proper divisors (89507247).

142155345 is a wasteful number, since it uses less digits than its factorization.

142155345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821.

The product of its digits is 12000, while the sum is 30.

The square root of 142155345 is about 11922.8916375181. The cubic root of 142155345 is about 521.9005219928.

The spelling of 142155345 in words is "one hundred forty-two million, one hundred fifty-five thousand, three hundred forty-five".