146155031 has 8 divisors (see below), whose sum is σ = 159775104. Its totient is φ = 132590520.

The previous prime is 146155027. The next prime is 146155033. The reversal of 146155031 is 130551641.

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 146155031 - 2² = 146155027 is a prime.

It is a super-2 number, since 2×146155031² = 42722586173221922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146155033) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8285 + ... + 18998.

It is an arithmetic number, because the mean of its divisors is an integer number (19971888).

Almost surely, 2^146155031 is an apocalyptic number.

146155031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

146155031 is a deficient number, since it is larger than the sum of its proper divisors (13620073).

146155031 is a wasteful number, since it uses less digits than its factorization.

146155031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27781.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 146155031 is about 12089.4594999115. The cubic root of 146155031 is about 526.7500552058.

The spelling of 146155031 in words is "one hundred forty-six million, one hundred fifty-five thousand, thirty-one".