145133779 has 8 divisors (see below), whose sum is σ = 166481408. Its totient is φ = 123939720.

The previous prime is 145133773. The next prime is 145133789. The reversal of 145133779 is 977331541.

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 145133779 - 2³ = 145133771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145133771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36357 + ... + 40150.

It is an arithmetic number, because the mean of its divisors is an integer number (20810176).

Almost surely, 2^145133779 is an apocalyptic number.

145133779 is a deficient number, since it is larger than the sum of its proper divisors (21347629).

145133779 is an equidigital number, since it uses as much as digits as its factorization.

145133779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76785.

The product of its digits is 79380, while the sum is 40.

The square root of 145133779 is about 12047.1481687576. The cubic root of 145133779 is about 525.5203053410.

The spelling of 145133779 in words is "one hundred forty-five million, one hundred thirty-three thousand, seven hundred seventy-nine".