145170379 has 2 divisors, whose sum is σ = 145170380. Its totient is φ = 145170378.

The previous prime is 145170373. The next prime is 145170391. The reversal of 145170379 is 973071541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145170379 - 2⁹ = 145169867 is a prime.

It is not a weakly prime, because it can be changed into another prime (145170373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72585189 + 72585190.

It is an arithmetic number, because the mean of its divisors is an integer number (72585190).

Almost surely, 2^145170379 is an apocalyptic number.

145170379 is a deficient number, since it is larger than the sum of its proper divisors (1).

145170379 is an equidigital number, since it uses as much as digits as its factorization.

145170379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 145170379 is about 12048.6671047050. The cubic root of 145170379 is about 525.5644770625.

The spelling of 145170379 in words is "one hundred forty-five million, one hundred seventy thousand, three hundred seventy-nine".