146227960691 has 4 divisors (see below), whose sum is σ = 147675762384. Its totient is φ = 144780159000.

The previous prime is 146227960667. The next prime is 146227960693. The reversal of 146227960691 is 196069722641.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146227960691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146227960693) 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, 723900695 + ... + 723900896.

It is an arithmetic number, because the mean of its divisors is an integer number (36918940596).

Almost surely, 2^146227960691 is an apocalyptic number.

146227960691 is a deficient number, since it is larger than the sum of its proper divisors (1447801693).

146227960691 is a wasteful number, since it uses less digits than its factorization.

146227960691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447801692.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 146227960691 in words is "one hundred forty-six billion, two hundred twenty-seven million, nine hundred sixty thousand, six hundred ninety-one".