146757661 has 4 divisors (see below), whose sum is σ = 151818300. Its totient is φ = 141697024.

The previous prime is 146757649. The next prime is 146757703. The reversal of 146757661 is 166757641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28622500 + 118135161 = 5350^2 + 10869^2 .

It is a cyclic number.

It is not a de Polignac number, because 146757661 - 2⁵ = 146757629 is a prime.

It is a super-2 number, since 2×146757661² = 43075622124381842, 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 (146757601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530276 + ... + 2530333.

It is an arithmetic number, because the mean of its divisors is an integer number (37954575).

Almost surely, 2^146757661 is an apocalyptic number.

It is an amenable number.

146757661 is a deficient number, since it is larger than the sum of its proper divisors (5060639).

146757661 is an equidigital number, since it uses as much as digits as its factorization.

146757661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060638.

The product of its digits is 211680, while the sum is 43.

The square root of 146757661 is about 12114.3576387690. The cubic root of 146757661 is about 527.4730320213.

The spelling of 146757661 in words is "one hundred forty-six million, seven hundred fifty-seven thousand, six hundred sixty-one".