145671757 has 16 divisors (see below), whose sum is σ = 185328000. Its totient is φ = 113507520.

The previous prime is 145671751. The next prime is 145671763. The reversal of 145671757 is 757176541.

145671757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145671751) and next prime (145671763).

It is not a de Polignac number, because 145671757 - 2³ = 145671749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145671751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15532 + ... + 23077.

It is an arithmetic number, because the mean of its divisors is an integer number (11583000).

Almost surely, 2^145671757 is an apocalyptic number.

It is an amenable number.

145671757 is a deficient number, since it is larger than the sum of its proper divisors (39656243).

145671757 is an equidigital number, since it uses as much as digits as its factorization.

145671757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38641 (or 38627 counting only the distinct ones).

The product of its digits is 205800, while the sum is 43.

The square root of 145671757 is about 12069.4555386728. The cubic root of 145671757 is about 526.1688328767.

The spelling of 145671757 in words is "one hundred forty-five million, six hundred seventy-one thousand, seven hundred fifty-seven".