145394252377 has 16 divisors (see below), whose sum is σ = 167972517504. Its totient is φ = 124378912000.

The previous prime is 145394252329. The next prime is 145394252389. The reversal of 145394252377 is 773252493541.

It is a cyclic number.

It is not a de Polignac number, because 145394252377 - 2¹¹ = 145394250329 is a prime.

It is a super-2 number, since 2×145394252377² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145394252317) 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, 1005852 + ... + 1141282.

It is an arithmetic number, because the mean of its divisors is an integer number (10498282344).

Almost surely, 2^145394252377 is an apocalyptic number.

145394252377 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

145394252377 is a deficient number, since it is larger than the sum of its proper divisors (22578265127).

145394252377 is a wasteful number, since it uses less digits than its factorization.

145394252377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141200.

The product of its digits is 6350400, while the sum is 52.

The spelling of 145394252377 in words is "one hundred forty-five billion, three hundred ninety-four million, two hundred fifty-two thousand, three hundred seventy-seven".