145415342779 has 8 divisors (see below), whose sum is σ = 171549897728. Its totient is φ = 120621021480.

The previous prime is 145415342777. The next prime is 145415342783. The reversal of 145415342779 is 977243514541.

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 145415342779 - 2¹ = 145415342777 is a prime.

It is a super-2 number, since 2×145415342779² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145415342777) 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, 335058177 + ... + 335058610.

It is an arithmetic number, because the mean of its divisors is an integer number (21443737216).

Almost surely, 2^145415342779 is an apocalyptic number.

145415342779 is a deficient number, since it is larger than the sum of its proper divisors (26134554949).

145415342779 is an equidigital number, since it uses as much as digits as its factorization.

145415342779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670116825.

The product of its digits is 4233600, while the sum is 52.

The spelling of 145415342779 in words is "one hundred forty-five billion, four hundred fifteen million, three hundred forty-two thousand, seven hundred seventy-nine".