146991757 has 8 divisors (see below), whose sum is σ = 161252640. Its totient is φ = 132880560.

The previous prime is 146991751. The next prime is 146991773. The reversal of 146991757 is 757199641.

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 146991757 - 2²³ = 138603149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146991757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146991751) 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, 35358 + ... + 39295.

It is an arithmetic number, because the mean of its divisors is an integer number (20156580).

Almost surely, 2^146991757 is an apocalyptic number.

It is an amenable number.

146991757 is a deficient number, since it is larger than the sum of its proper divisors (14260883).

146991757 is a wasteful number, since it uses less digits than its factorization.

146991757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74843.

The product of its digits is 476280, while the sum is 49.

The square root of 146991757 is about 12124.0157126259. The cubic root of 146991757 is about 527.7533438620.

The spelling of 146991757 in words is "one hundred forty-six million, nine hundred ninety-one thousand, seven hundred fifty-seven".