145641279 has 24 divisors (see below), whose sum is σ = 228109440. Its totient is φ = 82407024.

The previous prime is 145641269. The next prime is 145641283. The reversal of 145641279 is 972146541.

It is not a de Polignac number, because 145641279 - 2¹¹ = 145639231 is a prime.

It is a super-2 number, since 2×145641279² = 42422764297511682, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145641229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10332 + ... + 19950.

It is an arithmetic number, because the mean of its divisors is an integer number (9504560).

Almost surely, 2^145641279 is an apocalyptic number.

145641279 is a deficient number, since it is larger than the sum of its proper divisors (82468161).

145641279 is a wasteful number, since it uses less digits than its factorization.

145641279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9739 (or 9732 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 145641279 is about 12068.1928638881. The cubic root of 145641279 is about 526.1321346346.

The spelling of 145641279 in words is "one hundred forty-five million, six hundred forty-one thousand, two hundred seventy-nine".