146920731 has 8 divisors (see below), whose sum is σ = 200062464. Its totient is φ = 95863080.

The previous prime is 146920729. The next prime is 146920733. The reversal of 146920731 is 137029641.

It is an interprime number because it is at equal distance from previous prime (146920729) and next prime (146920733).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 146920731 - 2¹ = 146920729 is a prime.

It is a super-2 number, since 2×146920731² = 43171402395148722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 146920692 and 146920701.

It is not an unprimeable number, because it can be changed into a prime (146920733) 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, 520855 + ... + 521136.

It is an arithmetic number, because the mean of its divisors is an integer number (25007808).

Almost surely, 2^146920731 is an apocalyptic number.

146920731 is a deficient number, since it is larger than the sum of its proper divisors (53141733).

146920731 is a wasteful number, since it uses less digits than its factorization.

146920731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042041.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 146920731 is about 12121.0862137021. The cubic root of 146920731 is about 527.6683271943.

The spelling of 146920731 in words is "one hundred forty-six million, nine hundred twenty thousand, seven hundred thirty-one".