146999257 has 8 divisors (see below), whose sum is σ = 155724800. Its totient is φ = 138372624.

The previous prime is 146999243. The next prime is 146999291. The reversal of 146999257 is 752999641.

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 146999257 - 2¹⁵ = 146966489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146996257) 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, 21657 + ... + 27622.

It is an arithmetic number, because the mean of its divisors is an integer number (19465600).

Almost surely, 2^146999257 is an apocalyptic number.

It is an amenable number.

146999257 is a deficient number, since it is larger than the sum of its proper divisors (8725543).

146999257 is a wasteful number, since it uses less digits than its factorization.

146999257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49455.

The product of its digits is 1224720, while the sum is 52.

The square root of 146999257 is about 12124.3250121399. The cubic root of 146999257 is about 527.7623196096.

The spelling of 146999257 in words is "one hundred forty-six million, nine hundred ninety-nine thousand, two hundred fifty-seven".