145922699 has 4 divisors (see below), whose sum is σ = 157147536. Its totient is φ = 134697864.

The previous prime is 145922683. The next prime is 145922719. The reversal of 145922699 is 996229541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996229541 = 139 ⋅7167119.

It is a cyclic number.

It is not a de Polignac number, because 145922699 - 2⁴ = 145922683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145922669) 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 3 ways as a sum of consecutive naturals, for example, 5612399 + ... + 5612424.

It is an arithmetic number, because the mean of its divisors is an integer number (39286884).

Almost surely, 2^145922699 is an apocalyptic number.

145922699 is a deficient number, since it is larger than the sum of its proper divisors (11224837).

145922699 is a wasteful number, since it uses less digits than its factorization.

145922699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11224836.

The product of its digits is 349920, while the sum is 47.

The square root of 145922699 is about 12079.8468119426. The cubic root of 145922699 is about 526.4707951238.

The spelling of 145922699 in words is "one hundred forty-five million, nine hundred twenty-two thousand, six hundred ninety-nine".